Afraid i've got to agree with the others and say i think you've reached your limit on stocking levels.
I've got to agree with mandy (on a lighter note) I always said my 60 gal tank was more than enough for my house and I couldn't go any bigger. I now have a 182 gal tank and a 34 gal!!!! I did it by re-arranging my furniture, selling my dining room table and chairs and buying a smaller set. I'm trying to work out if I can fit a nano in as well and my LFS is trying to persuade me to get rid of my piano and have a 10ft tank instead!!!