I'll go with indy
and recommend getting a good book aswell as spending a few days going through this forum and seeing what kind of problems/questions others have had when starting up.
Just to address your query though, 10 gal
is on the small side and you (and nemo) would be much better off with a minimum of 30 gal
tanks can be a bit tricky at first so bigger allows you a lot more room for error. As for the anemone, it's not particularly advisable for newbies as they can be hard to care for, and they definitely prefer matured tanks. Most people will tell you to wait 6-12 months before considering one.