I second the following suggestions:
3) Remove the +300% food tiles (a sure way to tank your approval if you ever use them) or slightly change the morale curve on populations over 19 billion. As it is, under the current morale rules it is usually a detriment to try and use them for their intended purpose, so I ignore them. They are a trap for the inexperienced, however.
11) Change starbases to huge hulls to increase their hp. Allow constructers to repair a starbases hp rather than upgrade it if they are damaged.
How about a setting for the frequency and severity of the Mega Events? Another slider-type setting like the others used for setting up the universe.
How about a key that will take screen shots and save them in a specific folder with a generic name "Screenshot[Date/Time]"?
* Cari said this wouldn't be too difficult to implement... but allow Music to be replaced in \\ My Docs\My Games\GC2DarkAvatar etc so we don't have to over-write music files or drop new ones into the game directory. Therefore the game would check for that folder and use those music files first. It would also make it easier for peopel making complete customraces, as they would have to direct those music files to be put anywhere outside the \\ My Docs \\ GC2DA directory...
Do anything to mix up the early game so that it's not always a mad colony rush.
Hmm.. one thing that might be good would be to have a bunch of minor races automatically take up the colonies the major races don't have

I strongly agree with this one.. the mad rush at the beginning is almost always the deciding factor of the game

2) when you destroy a starbase you have some constructors back (very useful at higher level when every constructor is worth its weight in gold)
Actually, it would probably be better if the constructors don't "disappear" after upgrading/building

5) this is not my idea, it's by Sotris, in this post here but i support it very much:
1. Guardians for anomalies. I'm not sure whether this is possible, but it would be nice if you had to fight a sort of guardian (a la MOO) before exploring some anomalies, that automaticaly appeared in the sector. The guardian should be quite powerful (old Dread Lord sentinel,Arnorian Protector, Space Monster, whatever), but the reward should also be worthwhile (instant tech, a bundle of resources, a large plus in some ability, A powerful ship or relic, etc.). That might keep some anomalies unexplored until mid- or even late-game, and keep you on your toes- perhaps even more than the late grabbing of planets with new colony tech.
This would be good for dealing with the necessary and repetitive colony rush

i'd like to see a weapon that destroys planets and creates asteroeds for you to mine
This must be an inspired from the death star...

1. An in-game Post-It pad. Remind yourself what the heck you're doing at this or that planet, or with your empire as a whole. Useful when loading up a saved game you haven't played in a while. Example: 'Remember to research Logistics again' or 'Tuesday: Invade Earth'
Good idea.. also, maybe an option to show an in-game CLOCK --with some sort of popup/sounding alarm that could be set-- would be useful to those of us who play without looking at the time and those that don't want to ALT+TAB

4. The alignments are *really* unbalanced. As someone who doesn't like to be moustache-twiddling evil even when playing an "aggressive" game, this is really frustrating. Good just sucks - there should really be more bonuses to influence, your own population's approval, and such things. Evil is overpowered - when people cite one structure as critical to win at suicidal, you know something is wrong.
And the "moral decisions" are just *ridiculous*. Virtually all of them involve making a penalizing sacrifice as the good option, versus getting big bonuses for being an utter bastard. It's as if there is nothing but upside to being evil. Seldom is it a more realistic choice between different kinds of gain - peaceful growth versus military gain, for example.
I think this is #1 on the most wanted list after reading the posts....
Automatic fleeting of ships in orbit as discussed in a recent thread. Give the OFM other (hopefully balanced) abilities or simply retire it.
Strongly agree.
- a fourth governor: "Planets producing ship type X will send completed ships to location ..." Big empires with lots of different ship types and different "fronts" could really do with this feature.
I'm surprised this wasn't in the game when I first played it.. it's a basic feature in RTS games