Just looked up the tank, beautiful little tanks they are!! Their lighting seems pretty good for softies and maybe some of the LPS corals. Size wise, I wouldnt be too over eager for an anemone, they get so big and are very needy though later down the line, maybe you could introduce a Mini Maxi Anemone.
As for fish... well what fish do you like!?
There are several species of clowns... orange or black perculas that come in numerous colour variations, black and orange ocellaris that come in a few colour variations, pink skunks, orange skunks, clarkii and allards clowns.
Wetmorella sp (Possum Wrasses)
Blennies (tail spot, bicolour, sailfin etc)
Gobies (yellow watchman, rainfords, hectors, trimma sp, blue and gold neon... and many more im sure)
Royal Gramma
Dottybacks (though bear in mind they can be very aggressive)
Dwarf Angel (though be wary as most will pick at corals... but Coral Beauties are lovely).
Flasher Wrasse (numberous species are availeable)
Damsels (again, loads of varieties though bare in mind they are narky... Alleni *Blue Star* Damsels are gorgeous!)
So many different species are availeable!
Then you have a myriad of shrimps and snails and crabs and corals!
But before you even get that far... how are you getting on with cycling the tank?