depends wht u are looking for...if u want innovative and casual gaming, go for nds...if u want graphics and intense games, go for psp...psp is like a portable ps2 of sorts...

i bought psp but it didn't suit me due to time consuming as well as heavy games...sold it and bought nds and haven't put down my nds yet...all the games are innovative and casual enuff for a gamer like me who just wants something to pass time every now and then...

good luck in ya decision...