The Turnigy Trackstar Gen2 1cell is a great buy if your on a budget £34 plus P&P (from hobbyking, dont buy from international warehouse, ONLY UK or europe) These are dedicated 1cell speedo's.
Or (not used one) but according to reports the team powers 40amp speedo is ok. It comes with a programe box for £47 plus P&P. This is a 2cell speedo but it seems to work ok on a 1cell Lipo without a booster if your servo is not to power hungry.
But for sheer ease of use i'd go for a dedicated 1cell speedo.
Motors. The only ones you ever hear about are either Thunder Power or Trinity (D4 or Killshot)
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