Stuart I bought the pico scope already had the laptop and did there course both very good. The scope is capable of far more than I am but we live and learn. only down side is that by the time you have powered the laptop then the scope then run a couple of sets of wires to the job it can get a bit exciting when you trip over a dangling wire only to see something very expensive heading toward the concrete. Depending on how far you wish to go diagnostic wise the lucas portable is very good in all conditions, dos`nt pick up to much background noise and can be used on its own in built recharge pack. Great for road tests. sorry don`t have price bought mine at auction