I noticed that the folks at sens4speed.com are having some deals on speeds sensors, linear sensors, IR tire temps, and pressure senders. There stuff is second to none and the deals on the linear sensors are VERY good.
Even when you can't tune the suspension like in SM, even having one shock pot is helpful to line up data when analyzing. You can also learn a lot about the car when you have them. Roger Caddell from AiM has a great story about using them to help his son Andrew win the SM championship.
No connection or anything, just trying to pass on some deals. http://www.sens4speed.com/en/deals/