If you are recording for yourself you will find that a Mac does very well between Garageband and Logic Pro, and that the price doesn't look so back if you compare prices of Pro Tools and Logic Pro, while comparing plugins included.
Not very popular right now but there also is Ardour and a bunch of open source plugins. Ardour is Unix software and won't run on windows, but they do have a Mac port.
A Mac mini has plenty of processing power for smaller projects.
I don't follow photobucket links in sales ads.