I have the 32LH3000 and very pleased with it. The 7700, apart from freesat looses the ISF calibration features (i.e. Expert 1 and Expert 2) which allow you to set up the TV the way you want it. Hope this is of some help.
If you don't need the freesat then the LH3000 for me as well. Even if you did want freesat then it's arguably better to get a seperate box anyway. Plus freesat will probably start to fade away once freeviewHD appears sometime in the next year or so.