what're you working on?
Science fiction games. The first is essentially a card game, so not much music is needed, just an intro and three different endings (good guys win, bad guys win, and draw). I hadn't even thought of using music for it until I read your post. So now I plan to convert four of your examples to ogg vorbis format (and maybe trim one a bit at the start) just to see how the game would be with music. If they do remain as the actual game music you'll be credited, of course (and would normally get a free copy of the game, but in this case it'll be free to everyone).
The other, more substantial, games in the works are planned to have music, but they aren't far along enough yet. Again, it'll probably be brief intro and ending pieces. These games will be for download, so full-length, sweeping scores would be too big.
Our team's graphic artist knows someone who might be interested in doing some themes, and I've even thought about noodling around with Acid Music to create a piece or two. But, we could doubtless benefit from your talents as well.