Where to find a good cabinet to use?!

I've been looking for weeks in furniture stores and online for a good sized cabinet but I can't find one anywhere - can someone give me any ideas on where to look?

The specs I'm looking for are taller than 100cm but less than 150cm and no deeper than 50cm. Every furniture store only seems to sell cabinets (with doors) at a height of 70~80cm and then it moves onto wardrobes which are always too high. I think that 100cm is the ideal height, anything less and you will be compromising plant height pretty badly right?

I should also note that I'm looking for something that appears to be normal furniture, so guests won't question it - otherwise I would just knock up my own box but it would always look suspicious in the gues room.

buy a dresser from craigslist for cheap, lay down some reflective material, hook up some lights and your ready to rock.