Ryanair is sort of shady in my opinion. I think EasyJet is the way to go, but it is all up to you once you get over to Europe. Traveling by Rail is fairly cheap as well.
Air Transat is fairly cheap to get over to Europe. Sometimes you can find pretty good deals with Flight Center. If you just walk by their window every once and a while.
This week they had $99 + taxes one way to London. Which is pretty good deal. Though with taxes its still like 600 or so one way.
Its expensive to get over there, but fairly cheap to get around from what I understand.
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