floor jacks

I am in the market for a good floor jack at an affordable price. i picked up a Craftsman 3 ton jack this eve. and it is a total POS i believe it would make a good boat anchor. anyhow it's going back into the box for a return tomorrow and the quest is on. i am also in the market for a quality air compressor to run my air tools, ie. Impact wrenches and air ratchets . suggestion greatly appreciated