There are several online astro blogs that have discussed using the Fujis and the relative merits of the lens line-up - Google should turn them up, I don't have any of them bookmarked. Anything relevant to one Fuji-X model will be relevant to all the others, the -E1 and -Pro1 are essentially the same camera and the differences between the -E1 and the -E2/T1 are minimal.