I have had 360 for over 2 years now and i am so glad i bought this instead of the PS3.
Xboxlive is amazing, much better that what the ps3 has to offer. I know you have to pay £4.99 a month subscription or 12months for £35 on play but it is worth every single penny. And if i might add its a much reliable service and with faster download speeds than a PS3.
Theres only to downsides to this console...
1 is that every 12months or so, all depends on how much you play. you will have the 'Ring of death' which mean a hardware failure in your console. contact microsoft and they will repair or replace it within seven days. which is amazing. i have done this twice. Your console comes with a 3 year garantee.
2. No blu-ray player.
All in all, brilliant console for all ages. If i was you. I would get a 360.