I haven't heard anyone mention two more things I like about the Sun CR 18 rims. They are very inexpensive and also if you need to lower the profile on your tire you can by putting a 23mm tire on them.
Say you have a tire that rubs on the bottom of a Delta Brake, even if it is
raised up all the way (in this case a Mavic Open Pro rim and Vittoria tire)
you can change wheels and still get by. I was able to salvage this
situation
http://www.wooljersey.com/
Tom Sanders
Lansing, MI USA