That's a coincidence. I was going to mention the Q-AV system because it is discrete and a good choice if you are on a budget. Then there's the Yamaha YSP sound bars which also save a lot of space because they have the amplifiers built in to them.
Finally, there's the more conventional sub-sat systems based around a single box amp/disc player such as an Arcam Solo Movie. Speakers range from inceiling, inwall or something more conventional. I sell quite a few Monitor Audio Radius systems. Radius90 are excellent as an AV satellite that does very well at music. They're pretty small too at just 190 x 120 x 140 mm HWD. The Radius270 floorstanders are very elegant and equally slimline. They share the same 120x140mm cross section of the R90's.
Personally I would go with wall mounting the TV and front satellites, or perhaps look at the pencil thin Radius 270 floor standers. I'd get rid of the glass rack and choose something solid in wood with open & slot-back doors. This will hide the gear and the inevitable cable trails.
The icing on the cake is a radio frequency intelligent remote; a Nevo Q50 or one of the Prontos. This may seem like an extravagance but so was aircon in cars at one time. Trust me, have one of these professionally programmed at it will make the system a joy to use.
I supply and install all this sort of gear on a daily basis. It's decent stuff without breaking the bank.
Regards