1) Desk or Table --
This is the key to the project. About a 2 years ago I bought this nicely detailed desk on Craigslist for $50 dollars. The important part for you is to find one that you don't mind destroying (you have to cut it up, drill holes, etc) and the right size and height. The height can vary depending on personal preference, but a good level is about 34 inches for me.
2) Vessel Sink
-- This new trend made the whole project possible. You can find these at one of those big box stores, but I recommend eBay. I got mine for $75 dollars (including shipping) and it shipped and looks perfect. The seller I bought from is below. Any seller will probably be good, just make sure they have high ratings.
3) Facet (for Vessel Sinks)
-- And now buy one of the all-in-one sink facets. They range in price from $40-190 -- Mine was around the $50 mark. I bought mine on amazon (link below). Make sure that it's tall enough for a vessel sink and remember that you'll want the handle up high. You don't want to reach around the sink to turn on the water.