I made this decision about two weeks ago: in my final year of an engineering/computer science double degree, I've decided to take a leave of absence and pursue

I made this decision about two weeks ago: in my final year of an engineering/computer science double degree, I've decided to take a leave of absence and pursue some of the web startup ideas I have. The decision was made when I saw other people successfully implementing ideas that I was trying to get done in my spare time. I still feel a bit reckless because I don't have the idea, just a lot of smaller potential ones, but the absolute worst thing that can happen is that I graduate one year later. Lots of people told me that I should be careful that I don't throw away my degrees, but I can only see that happening in two ways: (a) I am wildly successful, in which case the degrees won't matter; or (b) I think that I'm on the verge of significant success right when the time comes to go back to uni. The latter is probably the most dangerous part of taking this path, so be sure that you can make a rational decision if (b) does happen.