So I started playing Kingdom Hearts: Chain Of Memories on the GBA this weekend, this is my 1st KH game and so far I am loving it. It's great to see the Final Fantasy cast interacting with classic Disney characters. The combat system is also fun.

After this game should I look into getting the DS KH game? I dont have a PS2 so 1-2 are no goes...

If I remember the only other one on Nintendo is 358/2

Kingdom Hearts is mostly about the story and the characters so I don't really see any reason to play the DS one if you haven't played KH1 and KH2.

Glad you're enjoying the KH series. If you do ever get the chance, try to get/play the KH series on PS2 as those are better (maybe borrow from a friend if they have it?). As well, the PS2 has Chain Of Memories remake since you really like the GBA version maybe you'll love it in PS2 graphics.

Yeah, go for 358/2 Days. It's closer to a "real" KH than Chain of Memories, but it's low tier on the storyline front. Be warned, though - Chain of Memories is harder and has more strategy than the other games. They're more straightforward than CoM, none of the deck building or room requirements.