Hmmm, I think you need to be little more spesific what do you want:
What do you wanna do with it? How many ins/outs do you need? And how about mic vs line-ins?
Price range: how much it can cost? Are you using it on mac/pc?
And finaly, why optical spdif? Origin has coaxial spdif out and isn't this the most typical in soundcards too, am I right?
Personally I have three Motus (they work fine in mac which is their first choise OS). Motu Ultralite Mk3 hybrid (both FW and USB) have spdif ins/outs and they work well I suppose (I don't use them very much). IMO ultralite is a great value for its price and compact size. It has great internal routing and FX too. One is at my home for playing/mixing/recording. Other one is working standalone as my personal digital mixer on stage.