Last time I used a mac was to write my master's thesis on Kaizen back in 1991. I still have a headache from the postcard-sized screen...
"Power PC" user here, I like to build my own with Asus server mobos and Lian Li cases and the rest of it. PCs are great. Macs have a loyal following, but after looking at them in an apple store, I said to myself, yes it's slick and has nice shiny plastic, but like the ipod, there's better alternatives at much better pricing available out there. Building one's own pc systems - that's nirvana.
I've got lots of widescreen monitors, dualcore system handbuilt from newegg.com components and it works great! I've built dozens of my own pcs over the years (I'm a trader), it's fun being a computer geek, as one hat to wear.. the reward is, you get the best systems available that work great -- kind of like Hans Solo working on the Millenium Falcon, tinkering under the hood and adding powerups..
-k