If she really loves you,if she is your soulmate,any time and any manner in which you propose will be like music to her heart.
My husband to be first proposed on AIM, it might sound lame or geekish but we are IT professionals, we have also been in a LDR for 16 months.
It was kind of funny,I was on my cell phone at work when he text messaged me.I accepted immediately and I was so happy,my co-workers noticed the look on my face and asked what was up
Over the next week he kind of backed down on the proposal, he wanted to wait till he was working again and could offer me some sort of security, he wanted to give me a ring,he wanted to wait till we'd lived together awhile... lol, he said so I could be sure of what I was getting into.
Flashforward to Xmas,I flew out to Cali to be with him for Xmas week,it was wonderful but strained as it was Xmas and I got to meet his parents,his sister and her kids.The last morning I was there I laughed and asked him if he wanted to repeat what he'd said to me on AIM at Thanksgiving.He looked at me and just said "will you marry me?" it wasn't fancy,it was planned or elborate,there wasn't any ring.....
It was probably the most romantic moment of my life and trust me when I tell you dudes that I've been treated to many a fancy,expensive planned gesture.
Just ask her when you know you really mean it,make it straight from your heart..if she is the one for you,she will love and cherish the moment forever,I know I will