You can spend a lot or spend a iittle...
Your really at the crossroads that any real computer nerd hits.
Do I go with yesterday's proven hardware at a discount? or do I buy the latest and greatest that sounds light years ahead of yesterday?
And the real question is How BIG is your wallet? In todays economic state, regardless of where you are in the world, I would suggest that any deal you can get would be a wise move.
It might not be the smartest but in a year or to you feel that need to step things up go for it. From past experience I have found that going budget with yesterday's top of the line equipment almost always wins.
Just my 2cents.
Cheers.