Basically, it's crucial for me to be able to run GB/C + GBA games. I was going to purchase new (not used) hardware along with the flash cart. I wasn't sure if I should be looking into GBA SP + Flash cart, or DS Lite + Flash cart. Being able to play DS games(or NES, SNES, etc) would be awesome, but it's the retro game boy games I'm looking for. I was also hoping for something that could hold 2gb+ of data. Thanks for any input.