PS2/PS3 controller adapter for Xbox 360?

[The 7th Number]

Is there any kind of adapter/converter for the xbox 360 that would allow me to play with the PS2/3 controller? I mainly want it for the d-pad/Street Fighter IV. Im not sold on the SFIV controllers for the 360, and would rather play it with a sony controller. However i dont have a PS3, just trying to think of a cheaper alternative than buying a ps3. I have seen this adapter called "XFPS 360" but ebay wants 70-100 bucks for it. :(

[kevlar51]

not to my knowledge. have you thought about a hori arcade stick? my main issue with sf, even more than the d-pad, is the button layout. i need to have six face buttons.

[The 7th Number]

Well, i would buy the 40 dollar SFIV Joypad, but im not totally sure the dpad will be good. In the pic i seen, it just looks like an upside down reeses; peanutbutter cup dpad that slides like a normal analog. The other pics ive seen are just drawings.

As for the Arcade sticks, those are $80, cos im not paying $120 for a controller. I mean that could be good. But im not used to playing with an arcade stick at all. I sit on my bed, so the controller would have to sit in my lap. I just think it might move around while im trying to play. I dont know.