Mackenzie 92
Member
http://www.tinyarcademachines.com/mame-arcade-machines.html
Its expensive.
Though it just fucking works. No lag. Every game you would probably ever want (it even has most of the Cube, PS2, Xbox, etc libraries). I did not get it for consoles though. I got it for MAME.
The one nitpick is the controller that works out of the box for console games is a wired 360 controller. Not sure how the dpad is on that. Probably crap.
that's actually not too bad for everything you get.
sidenote.. man the british pound has really taken a nosedive.