Well, that was mildly painful but it's all sorted now.
Only took 2 hours, had to abort halfway through and restart but I messed something up last night when configuring the db (damn you beer!).
The database is now on the new server - full redundancy across all drives so hopefully no more data loss due to hardware failure.
Things should hopefully be a little quicker as well - yay!
Thanks for your patience, I need to go and win some battles in http://www.trueachievements.com/DJ-Hero-2-xbox-360.htm