Hi. Getting my son a DS lite for x-mas. I'm also considering getting a DSXxtreme to strictly run NDS roms and an M3 lite to run GBA roms (but also to have the option to run a few NDS if necessary. I know that DSX also substitutes as a passme, but I'm not sure how it would work if I had both the DSX and M3 lite in the DS lite at the same time. Would I get a screen giving me the options of either running off the DSX or the M3....ie. could I chose which cart I play games off of, or would one be the default? Any help would be appreciated. Thanks.