PBase

Does anyone have a good photo workshop tour company they can recommend for Iceland? It seems to be a landscape photographer's dream but very expensive, most of the organized tours I've found are in the range of $5000.
Right now I'm leaning towards this tour, I'm a more advanced photographer who is happy to shoot sunrise to sunset, this one looks quite good.
http://www.phototc.com/tours/tour.php?tour=93

Thanks,
Philip