I used halfords stuff and I'm pretty impressed with the finish if I do say so myself.

You will need etch primer, normal primer (grey or white if your going silver on your alloys) then top coat, and clear lacquer. Guarantee you will need more than you think though. I did mine a few weeks ago and the first one wasnt great. I had a couple of runs but managed to flat them back, but then I put too much lacquer on and it went all dimply. If you dont think you have enough coverage for all parts of the wheel on every pass, dont worry just leave it to set for 15 mins, then come back and do the bits that were only lightly covered. I ended up doing about 8 or 9 passes on each coat (longbeaches are a b!tch and all angles!). Had to strip the first wheel back in the end but the end result was great.

Oh and test each tin on a scrap bit of metal first. They always have different resistences and different pressures they spray at. You can then judge how far each tin will need to be away from the wheel at each pass. Hope this helps mate.