I was watching these for myself, check em out....
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...7533&rd=1,1
http://cgi.ebay.com/ebaymotors/2006-Yamaha...142279894QQrdZ1
some projects:
http://cgi.ebay.com/ebaymotors/2000-Banshe...127185198QQrdZ1
http://cgi.ebay.com/ebaymotors/350-BANSHEE...142691416QQrdZ1
I built mine just about all stock in my sig from scratch for about 2400. Now you can buy one for that much and save yourself the trouble, and just add on aftermarkets on the way.