Need creative marriage proposal ideas!

Last night, I went on a date with my girlfriend of five years whom I met through a foreign marriage agency. I know weíve been going out for a long time now, but there was something different about last night. You know that defining moment when youíre just enjoying your time with someone, and you have a very vivid image of what life would be like spent with them? Well I had that moment with her and now Iím seriously considering on marrying this woman. Iíve never had such strong feelings for somebody before and Iíve never proposed to anyone, so Iím sorta clueless on how to go about it.

I really want it to be special though, so Iím gonna need some creative ideas for marriage proposals. Can anyone give me some good concepts? I want to make sure itís going to be a memorable and noteworthy experience for her.