nah theres no book to look into---but what you can do is do a search for completed auctions and look up a similar item. A rough guide is that rear wheels are more expensive than fronts. 9 speeds are the highest price rears.
Also, most things on Ebay tend to sell at half to %20 less than retail, depending on the age/availability of the item. If its less than 1/2 of retail youre probably getting a good deal. I know of one bikeshop that tries to sell a ton of stuff on Ebay all with reserves and sometimes the reserve is one $ less than msrp. As a result, a low percentage of their items are actually bid on.
The cool thing about Ebay is that things sell at a fair market value----theres an economist somewhere on this forum---and he can describe this in great detail im sure. But high interest things like the new Lance pedals or selling at very close to full retail price, cause their so new and availability is relatively lower than say a pair of 2000 DA spd-r pedals.
Depending on if its a front or rear, comes with tire or not, skewer or not the wheel will probably sell from $180-$260. And if im wrong---you can bet a million people will tell me.
Hope this helps---best shot is looking at similar completed items.
Want: 58cm Cervelo Soloist. PM me if you have one to sell
Vintage Cervelo: A Resource