Phaezen
Adventurer
I've also had a lot of success with the published modules stripping it down to just a few fights/encounters while keeping the spirit and ideas of the module. I did this for Thunderspire and fit it into 4 sessions... my players were still sick of it by the end then but a lot better than if I had run it whole cloth.
I have also had success with stripping modules down. Most of the fights in the published modules tend to be experience point fillers and you can scrap of circumvent them quite easily.
That said, if you like the system, but don't like the published modules, it is great fun to make your own.