Hi,
Noš 1: Please don't shoot me for posting a good find for a non-mechanical keyboard!!!
http://www.amazon.com/gp/product/B0025ZSBNG/ref=pe_171930_131972100_em_1p_0_tiI have read good things about this keyboard, even from users here on GH. I know it's not mechanical, but it could make a great TKL workboard. Now I have been reading that some users are working on their 2015 keyboard budget... this is your chance! A great keyboard for just a couple of bucks
In all seriousness, read that it actually has a great, near to , mechanical feel. Last few times I saw this it was just over $20 bucks, now it has been lowered in price.