If the Wii would get its ass into gear and release quality RPGs like the ps2 has, id say go with the Wii first and eventually get a ps2.
But the fact remains the Wii is still gonna be a haven for casual games (no deep storylines, barely passable RPGs) and little else for a while to come.
Get yourself a PS2 and wallow in the many many games you'll get to play, not to mention still some coming out in the future (Persona 4).











