Dang! What should I do now

Just 11 days ago I purchased my Macbook 2.2 Ghz for $1299 at a local military exchange.

I am still trying to figure if I want to take it back and get a refund (no re-stocking fee).

I need your honest opinions.

Sure, the new Macbook has the new processor, bigger hard drive and more memory, but will I really see a big difference? I have already upgraded the memory in my current Macbook to 2GB. Hard drive space is not really an issue right now.

I mostly do internet, e-mail and word processing but I do dabble in some video encoding and burning. Even some hi-def video capture is on the horizon but not too much since most of that is done on my iMac.

Is the new processor really that much better? Is it enough to warrant the upgrade. It runs cooler and faster but is the speed increase worth the trouble.

I have spent the last 11 days really enjoying my new Macbook. I have it setup just the way I like it. Would it be worth the time to do it all again with the new Macbook? I would hate to lose out on an upgrade especially since it won't cost me anything. On the other hand, I really like the Macbook I have.

Decisions...Decisions...

If I do decide to return it, what is the best way to wipe everything that I have done? Re-install Leopard?

Thanks for the help everyone. I returned my Macbook this evening and got the full amount back with no re-stocking fee. I am now waiting for the 2.4 GHz Penryn version from Amazon. Should be here on Friday.