I don't believe the Fast and Furious steering/force feedback pcb's are compatible with Need For Speed. Also not sure if the sound will work either. From what I've read (and I'm not an expert on F&F hardware) I'm pretty sure it will not come close to working.
I'm not familiar with the Dell hardware you're referring to, but this would be a drop in with a computer running a PS35-BL mothterboard and geforce 6600 video card (I believe). The video card could be upgraded to a few versions higher with the correct drivers.
The dongle and hard drive are pending sale at the moment.