I'm specifically looking for a set of 16" 4x100 Enkei RPF1's. Cheapest place i've found is vividracing.com. Any suggestions?

 

Here you go.....
www.tirerack.com

They have just wheels or you can get a package deal with a set of tires to go along with them for, what I think, is a pretty good deal. I've never bought a set of wheels and tires from them, but I have ordered some other parts and customer service wasn't bad at all.