I think the only thing that was stainless steel was the washers. The rest was zinc plated. To me it looks just like stainless steel at a fraction of the price. I think with all the parts and the MDF it was about $100.00. The most expensive parts were the flange nuts. They were like $3.00 a piece for the ones with a black finish (which I bought) and $8.00 for stainless steel ones. I got all the hardware at McMaster or something like that. Everything came with in 3 days after ordering.
BTW there is no bow or anything under my TV. I have 2 2 foot rods in the middle, and they are about 4 inches from the edges. I have even moved the rack around a bit fully loaded. My dad and I picked it up from each end and nothing broke or moved.
I like the stepped router bit you used...that's called a "shelving bit" I think. I know what it looks like anyway. I may do that myself...was gonna just round over, but now you've got me thinking.
Home Depot for mine, it was always located with the plywood. Although some people here have said that their local HD doesn't carry MDF cause of health reasons.
Marc You have a great set up [rack] - this is exactly what i have been looking for. I currently have a 32 Wega - but would eventually upgrade to a 42" Sony LCD. Can you list out the materials you used for your rack