I tried a free 7 day supply of
Nuvigil; I found that it lasts longer than Provigil,
and seems pretty powerful.
I found myself a little irritable, and had some rapid heartbeats, but that's something that can happen with me if I take a decongestant, so I wouldn't say that you would have the same side effects.
I would suggest that you take it pretty early in the morning, as I really had a hard time sleeping, even with meds to help that.