What should I do? I have a p180 case and a OCZ slitentxstream PSU. My problem is the power that leads to the CPU is a big cord that is so tight that it stretches along the PCI slots blocking me from putting any thing in them.

Can you buy an extension of some sort for cords and if you can what are they called?

Can someone help me?

This kind of thing:

http://www.maplin.co.uk/Module.asp [...] &U=strat15

Ah yes - bottom-mounted PSU I have the same problem in my Silverstone TJ07 case.

I managed to solve my problem by passing the cable underneath the motherboard (and rotating the PSU). You could give this a try.

I don't know if any extensions are available to buy for this cable, but it would be possible to mod the cable - requires some basic skills though

It seems there are extension cables available . I think this is what you need.