Which gamepad should I get?

I currently:
- MS Sidewinder gamepad (non-USB)
- Logitech wireless gamepad for PS2
- 2 Xbox 360 wireless controllers for my Xbox.

I need a gamepad for my new PC. I use a mouse for first person shooters but would like a gamepad for racing games like Need for Speed.

I've seen the Xbox 360 wireless gamepad receiver for the PC; Logitech's Rumblepad 2 also stands out (mainly because I'm a fan of their PS2 controller.)

Xbox gamepad receiver:
Pros: Can use up to 4 controllers. no need to buy a new controller. My current gamepads have a rechargeable batt.
Cons: Not alot of native support for it right now in games...seems to be changing though.

Logitech:
Pros: native support in games (?); good experience with PS2 version.
Cons: not sure of the level of native support in games. No rechargeable batt.

I currently use a wired xbox 360 controller for my pc,

best pc controller I ever had for all around use (xbox 360 wired controller = well worth the money )

for flight simulators, I use my saitek joystick

and for combat flight simulators like crimson skies, I use my logitech wingman cordless gamepad (looks linea like a PS2 controller, with a force feedback thats like 5 times as powerful and has a slider which is great for throttle

+1 XB360