PSU 4pin connector to Motherboard

Hey, I just bought a new case and the PSU fits at the bottom. The 4 pin connector that goes straight from your PSU to a socket near your CPU on your motherboard doesn't actually reach. It's an inch or two short.

Does anyone know where I can get an extension for this?

Also, can someone tell me the actual name for it, so I can search myself?

Many thanks.

-Mitch

[EDIT: I think I found one, luckily it's in a local store: http://www.maplin.co.uk/Module.aspx?ModuleNo=34109&doy=31m12&C=SEO&U=strat15, it's the right one, yes?]

Its the 4-pin ATX cable, or alternatively 12V cpu cable. There are really only 2 types of cpu power cables, 4 pin or 8 pin.

extension cable from performance-pcs.