GREYHAWK was definitely a customized version of the Peterson 34 really set up for racing. Most of them (the production boats) have somewhat more "cruisy" cockpits and interiors than mine. They do occaisionally show up on the market, generally listed for between $25K to $35K. I bought mine for substantially less than that, but it had not been well marketed (fortunately for me!).
A search of Yachtworld shows four Peterson 34's right now, BUT only 2 of those were actually production boats built by Composite Technologies/Island Yachts (the boats in Illinois and San Diego).
The boat in Alameda is an Offshore One Design 34, designed by Doug Peterson in 1978 as a racing class and built by Jeremy Rodgers (aka Contessa Yachts) in Lymington UK. The boat in Redondo Beach appears to be a custom one-off racer (and has been on the market for a long time).
There are several different models of C&C 35, spanning many years, and their prices have a wider range. Mark I's seem also list for between $25K to $35K. J35's tend to be more expensive (can still find them well under $100K though), but you might occaisionally find a beat racer for under $40K. Cape Dory 36's have prices similar to J35s, generally from $60K to $90K (or more).
For any of these boats, expect to spend more money beyond the purchase price (in my case, a lot more!) on re-fitting and out-fitting for offshore sailing.