61 is pretty cool. I would love to come up with something where I could use colors interchangably like the apple i-pod campaign...so perhaps a variation of the font in all gray with the house/bubble symbol in vibrant bright color(s). I like the outside of the bubble...would like to see it without the extra stuff in the middle. So either solid or just the frame.
I still love 33...it's simple and familiar. It's like I can subconsiuosly relate it to real estate without really knowing why. I think HUD has a similar font.
I was looking through some of your other designs and I really like what you did with you fanpeeps logo that was ranked 3rd. That is the kind of thing I would like to do with color. It looks very warm and playful, yet internet savvy. Pretty cool.