Well. Like loishen and I both suggested, use the Time Machine backup and transfer absolutely everything to your new computer exactly as it appeared on your last one. And don't do it wirelessly, use a Firewire connection (preferably 800, 400 okay) and it will transfer ALL in about one hour, possibly a lot less. Your new computer will look and behave exactly like your former one, down to the last detail. Wireless is really slow in comparison to a Firewire direct connection whether you use Migration Asst. or transfer everything. I've had occasion to transfer 2+ years of accumulated use from one Mac to another 2 or 3 times, always via Firewire and it has never exceeded 70 minutes - most recently with Snow Leopard, it was 55 minutes.
If I were you, I would boot your new Mac via the OS DVD, then transfer everything via Firewire from your backup. It will overwrite what you've already done, but in no time at all & leave you all your apps, folders, iTunes, programs etc, etc. Ian