I use a tall Fermob bistro table with a laptop.

It's $315 and is much classier than the cheap drafting desks. I also use it outside on the deck in the summer.

http://www.frenchbistrofurniture.com/product/F-0250/Fermob-F...

Also, a four-drawer dresser is about the same height as the table above. They are very easy to find at flea markets or estate sales for next to nothing, and are perfect for standing with a laptop.

I like the color, but it doesn't look very sturdy. Maybe the photo doesn't do it justice though. I was thinking of this one, what do you think?

http://www.amazon.com/Alvin-Folding-Drafting-Woodgrain-Round...

I know those drafting tables well, as I once was a wannabe illustrator. They are ok, but you are paying a premium for the ability to adjust it into a non-flat drawing surface. There's also a lot of extra space that you don't need if you're just using it as a laptop. Honestly, if it didn't have the adjustable top, it should cost about $30 at IKEA. They are easy to find on craigslist in big cities, though.

Regarding the bistro table, I would say it's about 20% more stable than you would expect. Pretty good for a laptop. I wouldn't put a 27" iMac on it, though.