+1 on realhog.com for friendly and communicative service...they phoned me twice today from the west coast as a delivery was going to be late, I reckon that's pretty good. Beware though, their postge is very cheap (example $34 for 2 week postage verse $100 from the manufacturer[Mustang]) but some of their items use ups and are not tracked and can take up to 8 weeks. But, great folks to deal with, and good prices.
I have dealt with quite a few US suppliers and honestly about a half of them don't even respond to email, fax or their own enquiry sites...worthless.
I also think Rollies are a great bunch to deal with, yeah the prices don't compare with the cheapest oversees, but they are Aussie and seem to be genuinely interested in your satisfaction as well as your cash.
Just my 2 cents worth
J&P Cycles, for aftermarket parts.
Aftermarket parts in most cases are a better option over stock HD parts in my opinion.
Corporate GREED that is all it amounts to, they don't care about their customers just the customers dollars.