If you want the Harbor Freight 1.5 TON cheapie they're down to $57.99 this week so good time to pick one up. Free shipping with $75 purchase. They have the 2 ton unit for $129, but I found a better deal at Advance Auto Parts.
1.5 Ton Compact Aluminum Racing Floor Jack with Rapid Pump® [harborfreight.com]
Advance Auto Parts has their 2.5 Ton floor jack on sale for $109.99. Similar in construction to the 2 ton HF unit. The AAP website lists it at ~31lbs., but it's closer to 50lbs. like the HF jack. It fits under my lowered coupe with no issues so this is my new track jack. Here's the way to get this jack for $89.
AutoCraft 2.5T Alum/Steel Jack 941PV/941PV: Advance Auto Parts [advanceautoparts.com]
1) Make sure you join Advance Auto Parts Speedperks. You get $5 coupon for every $30 spent and $20 for every $100.
2) AAP will send you a coupon for $20 off your next $40 purchase. You can double dip with their other coupon codes.
-$20.00 Speedperks coupon