I would
strongly recommend also checking out the Metric HALO units. I owned an RME FF800 for a while, and it is a fantastic interface with great flexibility and converters, but if you can get buy with fewer connections, you can go with the Metric HALO ULN-2, which has pre-amps that rival boutique amps costing (by themselves) as much as the whole Metric HALIO interface.
If you need a lot of connections, you can go with the 2882, which has more I/O, but preamps only as good or slightly better than the RME unit.
I will tell you that after using the RME for a couple of years, I auditioned the Metric HALO and like it better...but that is just MY preference.
BTW, if you check it out, look at the EXTENDED version (that is what I have). The 2d card is astonishing, and particularly, the "character" settings are to die for.
I have a modest home studio, and this track was done COMPLETELY with Metric HALO and Peluso and Rhode mics. The compliments that I received on the guitar sound were better than the tracks on another song that I did with API pres. Go figure.
http://www.soundclick.com/util/streamm3u.m3u?id=6664479&q=hi