I am very impressed by Mac's. They have all their own software, but the new ones will run windows as well so you wouldn't have a transfer problem. I think you can try them for 30 days free.
I haven't got a Mac but I am seriously considering it when I next change my old Dell.(5 years old this Xmas)
I don't know where you live, but look for an Apple shop near you. There is one in the Trafford Centre nr Manchester, and it is worth paying a visit to have a play around and get the feel of them.