Alright, I would go with a PC, whether it be a Dell or an HP. If you are looking to do any type of gaming or editing I would go with the HP Pavilion Media Center laptop, I hear it is unbelievable. If you don't want Vista, I would strongly encourage using Dell, that way you can run windows XP. Just so you know you can still order computers with XP, and I would suggest it due to the newness of Vista.
Good Luck my friend