Windows 7 or Mac

[Little Dave]

I need to replace my desktop PC and have been looking at the all in one Windows 7 machines with touchscreen etc etc. I then started to think about Mac's. I need a machine for internet, office, music, pictures etc. It also needs to be fairly easy for a numpty like me to sort out different usernames so that I can control what my kids have access to. If it makes any difference I do have a 3GS I phone and think it is great.

So windows 7 all in one machine or a decent Mac?

TIA

[Little Dave]

OP here. I did not intend to start a huge debate off about what is best but merely to ascertain if someone used to Windows machines would be able to get on with a Mac. Bear in mind this is purely a home system for me and I am not greatly IT literate. However I can be fairly impulsive and after reading quite a few posts and doing a bit of net research (without tissues) I popped out and got myself a Mac 950.
First thoughts are it is not as foreign as I half expected and I am beginning to get to grips with it. I have downloaded some of my pictures and have had a play around with them........hugely impressed with what can be done so far. As soon as I can find out where my iTunes library is stored on my old pc I will get that uploaded. Also pleased to see that it has a built in spell check which should please the PH spell police. I think I will get along fine with it but no doubt will have some (many) questions over the coming weeks.
Thanks very much for the input so far.

Think it might be a late night tonight