Xbox 360 elite:
System (with headset) - $299.99
Play and charge kit - $19.99
Xbox live - $50.00 (per year)
Total - $369.98+
Playstation 3:
System (bluray, wifi, rechargable controller) - $299.99
Headset (optional) - $29.99
PSN - free
Total - $329.98
With wifi:
Xbox 360 ($100) - $469.98+
Playstation 3 (built in) - $329.98
I rest my case.