BK,
We're a couple of DINKs (not your target market, probably), but really like the layout of our current condo. It's a 2/2, approx. 1450 sq. foot and all one level. I like having a larger kitchen and a great room combo livingroom / dining room. I'd like at least one additional room. The great room allows us to maximize LR space most of the time, but if we have a family dinner, we can expand the dining area when needed. Our laundry is a side by side, about 8x6. I like having it inside. At least one downstairs bed/bath would be important to us. For us, a yard big enough for 8 - 10 people would be perfect. So long as there is sufficient guest parking in the neighborhood, we would be ok without a driveway. Given the prevalence of laptops and wireless internet access, a "tech" area is not important, but we like having our own desks, whether that be in one of the BRs made into an office or something built in. That said, Crate and Barrel and some others are creating some nice desks that incorporate into the living and other rooms nicely.
I suspect our ideal footprint is too large for the detached condo market, but since you asked ...