AmigaKit have always given me excellent service too, although they have missed an occasional email inquiry (so if you don't get a reply the first time them make sure you email them again with "SECOND REQUEST" emblazoned in the header, and email the store instead of PMing them here.

Elbox have also bent over backwards to provide with with after-sales support, so well done Elbox too.
Vesalia have been a pleasure to deal with for my 8 bit stuff.
Software Hut have to be checked for a pulse to make sure they're alive when asking questions, but have delivered orders promptly.