One of the best combos I have seen/used is the Smooth Stepper hooked to the C32 board from CNC4PC (you can also use the PP feature on the C32 if your not running a SS). Cost is good here, quality is good, customer support is great.
Another option like Hood said is Steve Stallings stuff, His stuff is built to be MORE robust, you pay a little more, but he builds rock solid industrial level stuff!
He has several integrated solutions.
MM, I can't speak to their products I don't use them.
DSPMC, I don't use them. [edited by me].
At the "Money" level, for an industrial machine your making cash with on a daily basis, I would go with a Galil Motion board/plugin. The Galil IS a true Industrial CNC motion control board, you WILL pay for that fact, but........ you do get what you pay for, and if UPTIME is the main factor, go that way.
I am playing with the "Centipede" Motion control board, which so far appears well built, and alot of cool features, PLUS they have OPEN sourced their code, so you can modify it to what you need if you have to. The down side here is it is limited to XP machines.......... Since Mach revision 4 is on the horizon and all of that will be moved to modern compilers and OS's...... I think that will limit the "life time" and access to replacement systems, in the future........ even now it is getting difficult to find XP OS's and machines......
Technics products/boards, I have never used so dont know.
Industrial Controls: This is the "Industrial Mach" version, the MCP-1 and Scorpion boards have good reviews.
"Wolfman" of CNC Strasbourg Germany, has licensed the SS tech from Greg, and he makes an Ethernet (YEA!!!!) driven SS motion control board, that is industrial built. I have not personally used his stuff, but he is a known name for knowledgeable work, and good solutions.
Scott