As long as you keep the anti virus software updated, then by all means continue using XP, its a great OS, and I even though I do miss XP at times, I love my new laptop , more so that its leaps and bound better then my laptop that I was using before
I bought my laptop in 2005, it had a 60GB HD, 512 wroth of ram, my new one has a 1TB HD and 6GB of ram, its like going from a pinto to a super car ,and its not even close to being a top of line computer