Not that you’ll get shifting architectures and software issues with Windows? Plus the whole set of issues Vista brings to the table? I haven’t noticed the pain you’re talking about - once my Mac is working I don’t update any software until I know it works right. I do the same thing with Windows. And I backup before a major update, just in case. Plus, their architecture’s locked into the x86 processors at this point and for a long time in the forseeable future. I bought Leopard, but still haven’t upgraded because Nuke is not 10.5-compatible yet. That said, Leopard doesn’t necessarily have anything I need anyway, so why mess with my setup if it’s working?
Is there one software issue in particular that’s a problem? Or a peripheral available for Windows PC’s that’s not available for Mac’s?
Just trying to get you to truly examine your position and what you want to get out of it. If OSX is a joy to work with, why not just stick with it? The grass may seem greener on the other side of the fence… but when you land their you’ll encounter a whole new set of problems. And without Apple’s standardized hardware system troubleshooting is not as easy.
You’ll also spend the same on Media Composer alone as you’d spend getting a dual-2.66ghz dualcore Mac with the ATI card, plus a Blackmagic card, plus Shake, plus Final Cut Pro. And odds are you won’t edit any faster or run any more stable anyways, plus you’ll have to deal with Avid’s whole expensive-proprietary workflows.
I do archviz as well, and run all my video stuff on my Macbook Pro from within OSX. For $1200 you really can’t beat the Final Cut suite for video (although Adobe’s pretty close)… and I’ve recently been switching over to Modo in OSX for some work. That said, I do have a bootcamp partition for 3ds max, Vray, and Fusion (although I use Shake as well). This gives me the best of both worlds, and has been very stable for me.
Anyway, if you write down the plusses and minuses and find yourself moving to Vista (which you’ll ultimately have to do anyway), then my Windows software votes would be:
Adobe Production Studio Premium (or whatever it’s called now) - that will cover everything in FCS2 except Color
Eyeon Fusion (it’s more at first but the maintenance is much cheaper than Nuke’s, making it less expensive after 3 years) - the particle system is invaluable, and unless Nuke 5 brings better painting abilities Fusion is much stronger in paint and touchup