I have been depending upon Sweetwater for over fifteen years. Tyler, my sales engineer, has given me some fantastic service; his pre-sales technical support is the most important reason why I will continue to be their patron. The 30-day (post-sale) price match is awesome too (which I leveraged for a 33% savings recently).
Anyhow, I just purchased a set of the Roland TD-50K V-Drums (especially for the 8 configurable direct outs!) and I am psyched to get the kit working with Superior Drummer. Last drum kit I bought from Sweetwater had a MIDI problem after about 11 months (the bass player tripped on the cable and tweaked the connector) and they took care of the whole problem without any cost to me.