I know that feeling. At a house I worked on last year the owner needed three dimmers, two of which were controlling large chandelier-type light fixtures totaling about 400W each.
Despite my misgivings about using the lowest-quality 500W dimmers, the builder insisted we go with the cheapest versions (a make I have had experience with before and would never run at more than about half their rating given a choice).
Guess who had to go back and change two of them for better quality replacements, and trek down to the supply house to get a refund on the faulty units?
[This message has been edited by pauluk (edited 09-08-2002).]