I built this one and it is by far the best thing for working on your bike:
http://www.bbcracing.com/old/box/
After I built it, I decided it was a bit to tall so I took off about 3 or 4in from the legs/sides and now its PERFECT!!
I also painted the top with that 2 part garage floor epoxy and now cleaning up oil/anti-freeze is a snap.
I use a arched ramp to get it up there and after some practice, I have no problem getting it on the stand and up onto my rear stand by myself.
You're welcome!!!
BTW, when you're not using it, it can be quickly taken apart and stacked neatly up against a wall.