Viewing US prices from the UK

How can I perform a search for the best US price for a game when I am in the UK? I sometimes want to look up a price for a friend in the US, but as far as I can tell it’s impossible since www.cheapassgamer.com always shows your localised prices.

I also have the opposite problem because I use a hosted RSS reader, which means I can’t subscribe to the feed as I get US prices instead of my local UK prices

A basic check would be amazon.com I believe

There's a way I do it when I'm in the UK over the holidays, I want to say I have a link pointed at www.cheapassgamer.com/forums and go to the deals from there which lets me see the US deals still.

I'll check on my laptop when I get home and update this post.

EDIT - No my link just points to home page, thinking about it I think in the UK it gives you links to the UK Deals forum and the US deals forum if you use the forums link.