I'm thinking of buying a DS Lite soon, and I was reading a few threads on here about playing DS and GBA roms on one with special carts or cards. I'm confused as to which one I should look into, since I'd like to play both GBA and DS games on mine, so which one should I go with? And what do I need? And where should I buy them? (I'm in New Mexico). I once had a cart for the GBA SP that I could put roms on and play (called a Linker-something-or-another), but I returned it because the save battery was dead. I also have modded PSPs, PS2s and PSOnes, though this is all new to me. I just want this to be as painless as possible. Any suggestions?