That's a great tutorial on adding a mirror finish!

I think that you should just do it now. It would look awesome and be the envy of everyone around.  It's also a nice weekend project. 

If you have a weekend that it can be spared, then you should do it. 
_________________________
MacBook 2GHz Intel Core 2 Duo w/ 2GB DDR2 RAM & 120GB SATA 5400RPM HDD
Canon Rebel XTI
Google Cr-48 Beta Laptop