I think its important to talk about how both of you are going to handle the distance. Clearly if one of you expects to be chatting on the phone everyday and the other expects not so often, things won't go well. So I think communication is Very important, whether its chatting online, emails, phone calls, webcam. Do something special once in a while, send a card, send a letter. Just my experience of 2yr+(and still going ) , long dist is hard, but a normal relationship also has its own problems anyway.