I've been working on a (fairly simplistic) spreadsheet of all Club Nintendo eligible games, coins possible for each, and coins required for each reward. Clipper helped me unmangle it a bit, and I thought I'd let anyone else see it if they were interested.
http://codebook.potchgult.com/clubnintendo/
Feel free to check it out and let us know if you see any mistakes. There are a few things we're looking for at the moment:
1) MSRP prices for most DS games. I don't think the ones I've listed are completely accurate.
2) Surveys -- does anyone have a survey OTHER than the ones listed on the front page?
3) Any info on the Rewards I might be missing. Were there other rewards we've forgotten? When did the Navy Blue DS Card Case get released?
Feel free to comment. Right now I'm not opening it up for editing by anyone other than myself and Clipper, but if things get crazy I can always add some other folks. I need to add the Wii shop updates today, but otherwise it should be accurate.