Yeah, those lights aren't going to support any anemones or SPS corals, just some of the easier softies. I would upgrade to T5 HO's if you get a chance. You still won't be farming SPS or anything, but you'll be able to keep any LPS or soft corals you want. Until then there are lots of zoas and mushrooms and other soft corals you can have fun with.
Do you think T5s will fit in my fixture? The one with the T8s, of course.