I purchased a set like this off ebay a year ago or so. You can find them really cheap coming from China/Hong Kong Etc.
Here is a complete set 10m for about $30 shipped. A few things if purchasing off Ebay.
ebay.com link » New 10m 3528 300 Led Smd Rgb 2x5m Light Strip 24 Key Free Ir Remote 5a Power
Make sure it come with Led strip, remote, transformer w/ plug, and the small white box(connector?)
They sell strips that are waterproof and non water proof. They also sell strips that have 150 leds per 5m and 300 leds per 5m. Making sure it has the black transformer a plug is important, unless you want to source that which can also be found cheap on Ebay from China, lol. Usually like 2 or 3 bucks.
I think OP and Beatmaster gameroom lighting looks excellent. I really like the idea of hiding the strip under the chair rail or whatever you call that half way up the wall. The strip itself is not that attractive.