i was wondering if there were any drawbacks or anything to unlocking the curve (ie: slower processing, glitches, anything). i might be going to canada for a couple weeks and was thinking about unlocking my curve so i can use a rogers SIM card while in canada. but i was wondering if there are any negative things that can or have happened to people when unlocking a curve. any information would be appreciated.

There are no negatives to unlocking your device. Everything will work exactly the same. It may work different when you put another sim in it as it will be provisioned to that sim but, otherwise it'll be the same.