Upgrading Hard Drive on MacBook Pro

[ghall]

I'm thinking of having my MacBook Pro's hard drive upgraded. I won't be doing it myself (I'm not that brave), I'll possibly be sending it into MacService. I have an 80 GB HD, so should I go for the 160 GB or do you think 120 GB will be enough? Also, how will this affect my warrenty?

 

[mad jew]

If a certified technician does it, your warranty will remain unaffected. However, it'd be much cheaper to stick with the 80GB internal drive and buy a cheap external case for a larger and possibly faster 3.5" desktop drive.