iMac/PC streamlining

I am new to this forum but not new to macs. I've been searching all over the net for an answer to my question and I must not be typing in the right things to find the answer. Here it goes.

I have an iMac G5 20". It does not have the intel chip, I got it back in 04 I think. I have a OLD gateway PC, thats running windows XP. My question is, is it possible to hook up my PC to a switcher or something to be able to use my iMac as it is, AND as a monitor for my PC?

Any info is definitely appreciated. Thank you in advance.

Nevermind. I found the answer just a few threads down. I should read before I post. The answer was no. Sorry.