Thanks guys, I'm going to check most of these games out. Coming from consoles and PCs, I'm surprised to find the games so cheap. I know they're on a small portable, but still, when compared to PS2 and xbox, I find I can buy a bunch at a time just to try out.
I've been playing FF Tactics the last few days and I now think that the GBA SP is the best platform for RPGs. I can't play them anymore on the consoles cause of all the other cool stuff on em, but when I'm sitting around waiting for something, it seems like the best time for a dungeon crawl. And it seems like there are a bunch of good RPGs for this thing.