There are many shopping comparison sites out there, though some tend to either be slow and clunky with the interface, or only search a limited number of online stores’ inventories, and so don’t always return the best price possible.
This afternoon, I tested out QuickShop, and was actually pleasantly surprised at the quality of the results and prices returned. I tried a few technical products (a couple of different nVidia based graphic cards), some books and then a few random searches, using names and towns to see just what was listed.
For anyone looking for great deals online, I can happily recommend the site - at the end of the day, it will only take a few seconds to try the new service out, and you could end up saving some money. As for their claim to be able to find more products, from more stores, than any other existing site, I obviously don’t have the numbers to confirm this myself, but from the searches I ran, and the quantity and quality of results turned, I think they could well be worth looking into, especially with Christmas and all the related gift buying coming up so soon.