You can put together a pretty good set for about 2/3 of that if you just pick and choose.

Just look at this price for almost brand new complete group, 8-sp STI/600 Ultegra:
http://cgi.ebay.com/Shimano-600-8-sp...3A1%7C294%3A50

If I didn't have all that except for the STI's, I'd jump on it, but I'm thinking of just buying NOS DT shifters and staying good quality classic.