I am writing from my new macbook pro, I re-switched to mac after 3 years on pc and for me it has been a nightmare, I tried everything, building my own pc too, nothing to do... there was always something wrong... and then antivirus, antispyware, firewalls.... aaaaahhhh.
Now I only complain on the connection speed but its not mac's fault (i am on a mobile connection right now), moreover if I want a pc (everybody can go crazy) I just install a windows os on the macbook with full performance, or use parallel desktop loosing just a little power.
I have no doubt about it: mac is the right choice, now more than before.