OTC Stinger 1545, I paid $169, the lowest clearance 3 1/2", I believe it is the lowest jack you can get in the market. This jack is well built, easy to move around, well balanced, I highly recommend it.
I think it depends on how much you fear dropping your bike.
I went with J/S Jacks. I spent over $20K for the bike and a couple hundred more for a solid bike jack.
Like everything else it's your choice. Alot of people here use the Sears yellow. I just wasn't going to risk it for a few more dollars.
Another vote here for the J&S jack. I also have the Sears Yellow one and the J&S is a *LOT* more stable with the bike on it. Doesn't require tiedown straps either. The J&S weighs about double the Yellow jack too. I think I paid about $335 plus shipping out of Wisconsin.