I think one of the hardest parts is that you really need to define a type of rack you are looking for. Simply saying "I want a rack" is like saying "I need a vehicle" - You could get 1,000 ideas for different cars, but you really want a boat.
Take some photos and show some links to things you like and match your room nicely. From there, you might get some more specific ideas for things which match and work nicely in your space.
For example...
http://www.racksandstands.com/Wood-Technology-AR-28-O-WT0293.html
That's what I use. I am very happy with the hardwood construction as it is CRAZY strong. The depth of the cabinet is kind of weak. I mounted Middle Atlantic rack rail inside the rack so I can rack mount my gear (nice), and the wheels are sturdy and give me back access, but don't work well on carpet.
Most of all, the glass front keeps my kids hands off the gear (mostly). It's not to bad for them to get by the door, but they know they aren't supposed to, and it's not super easy for them to get by.
The downside? Clearly, it's not one of the most stylish racks, but it is available in black, or it could be finished to a slightly different color if wanted. I'm very happy with it. I wish it were a bit wider, and a lot deeper, but really - overall I'm really happy.
Yet, if this isn't at all what you are looking for, then that entire description is kind of going to waste.