Today on a local ad a guy is posting a G5 tower for $150 with2Gb RAM. I currently have a 2.0 Dual core2duo Macbook as my main computer. It runs my HD tv in my room and I watch most shows through this way. But after reading this add, it sounds like a great deal to me. (6 year old machine, that was originally ~$2000 for $150... nothing wrong there!) But im having second thoughts on the necessity of this computer. My macbook runs the HDTV flawlessly, along with running Windows XP in the background on Parallels. So my macbook does not need any help, but this deal is almost too good to pass. Thoughts?