Is this for use on Xbox Live? if not I would go for a Jtag / RGH as you can play games from all regions. US consoles will play the majority of the games a PAL console can, you would be better having a JPN console if you plan on importing as they are a lot of exclusives you could then play. A lot of games sold in the US are region free too. 4gb JPN Slim for £190 - if i was going to import a console thats what i would personally buy. Just a word of warning expect import tax when importing something like a console.
A Jtag will play games from any region and boot homebrew, if you're asking the console he linked to will play PAL/NTSC-U games, no it won't without modifications, it would only play NTSC-J and Region Free games.
Most games released in the US get released in Europe too with a couple of exceptions, Raiden Fighter Aces, Raiden IV been two that come to mind. This makes it kind of pointless importing a US console if you have a PAL one, i would go with that others are saying and get a nice new Reset Glitched slim or a JPN console. Both would be better value for money, unless you really want a US console. What are your reasons for wanting one?