A popular desk amongst many technical people I know for many years was IKEA's "JERKER" desk. It was well-known to be extremely sturdy -- able to hold very large CRT screens -- and relatively inexpensive in most countries.

There were a couple models, but they now seem to have been discontinued.

Lately I've seen more people buying the "GALANT" as a replacement, which is a similar series of desks from IKEA, except with far more configuration options. These desks are not as industrially-weight-bearing, but I guess not as many people are sporting CRTs anymore :)