Upgrading now?
Why, after the UT2007 release my rig will be worth less...
In other words, If you wait untill after the release, you will pay less for the same rig. Also, you will know the specs you need to play UT2007 so you can save money on that too!
I think UT2007 will be released in 3rd quarter of 2006, maybe even the 4rd. So that gives us some time to save more money...