You answered your own question...
You will never regret buying a mac if you can get past the sticker shock. If you are running Photoshoop or the adobe suite for photo editing, you will need a decently powerful machine. I own both a MBP and a powerful desktop with Windows/Linux and I have never had a problem with either. Just dont download anything off the internet except things you know are official. Dont torrent, look at porn or download crap from places you are unfamiliar and you wont have a problem with windows. Also, keep your computer clean if you can access the internals and that will help.
Windows isnt coded as well as Mac and Macs are much much more stable but if you dont want to drop the coin on a new one, buy a used one on ebay or get a windows pc (real work) and a tablet (porn and shitty games) and you will be set.
Also, macs dont have the diversity of software as pc. Almost all of the major players make both, but sometimes you run into problems.
My opinion is, save up until you can comfortably buy the MBP and you will be happy for many years.
Do you need a tissue after that steeze?
My stuff is always for sale. If its in my profile gear list and you want it, make a reasonable offer or trade for similar skis that I have.