might as well add mine in
used to have a standard dell keyboard
then had a lycosa (was such a shit keyboard sorry to anyone that has one here, I really feel for you) felt my performances drop quite a bit as well as movement becoming garbage, the membrane tore on the up arrow key and that was the catalyst in me changing keyboards and going mechanical also
then i bought a qpad mk-80 - best investment in a keyboard I have made I chose to go for the brown mx switches