Some good info and recommendations in here.
HF, craftsman, and costco all have solid jacks. HF prices are hard to beat
Here is a small list for any guys getting into wheel removal and installing i think that are needed to do the job safely and correctly
HF floor jack
ECS jack pad adapter
HF 2 ton jack stands
HF 1/2 tq wrench (88.5 Ft lb to 100 Ft lb tq em down) 88 FtLB a lil loose side for me
The deep sockets, or even a 1-2 inch extension to the socket, will aid in creating distance from the car and the wrench.
Coated/covered deep lug sockets (helps in keeping wheels from scratching) Not essential but there cool.
Another note, i just bought this from BMW:
Comes with carrying case, gloves, scissor jack w/ wrench to raise/lower the car, break bar, Tq wrench preset to 103 FT lbs (140nm), wheel chock..
Very cool lil setup that fits in a nice small bag, and uncludes a TQ wrench which is essential and actually works great, and is repeatedly accurate.
(remember, never drop or abuse the tq wrench, never use it to loosen, keep it clean and dry) Will keep yout tq wrench in calibration for a long time to come.