Financing anything is hardly ever a sound financial decision. If you can fix your existing laptop than you are golden to save up for something better. Otherwise if you can only put away say $100 a month for a new computer it will be 20 months before you have the money to buy what you are looking at. You need to weigh the priorities.

Definitely do not finance from Best Buy if you go that route... man are they seedy. They offer you a Same as cash deal but if you are late by one second they not only raise the interest rate to like 28% but also apply if back to the beginning. To make it even harder the payments are on a 25 day schedule so it never the same time every month...