I'm on my 4th 360, I complained so much over the course of the repairs and returns, I got 2 wireless controllers, a wireless headset, 3 Games including Forza 2, 6 months gold account ( you get one month each time you get your 360 repaired anyway ) and then a brand spanking new 360 with HDMI port, because it was new it came with a hard disk in the box and as I didn't return mine for repairs I have now got 2. This final one with the HDMI port is much, much quieter so much so you cant tell its even on.... Oh they even delivered it by express courier 2 days before xmas...
If you need it repaired tell then it has a random RROD, they have to repair it then and also give you extra years on your warnantee