Everyone has their preference as to what motor/speedo marque they run/like. I run a Novak 5.5/GTB combo in my Durga, no problems so far. Other people will have other stories/opinions. There are numerous combos out there like the Novak, LRP/Nosram, Speed Passion, Tekin to name but a few.
Charger wise I quite like the Bantam E-station BC6, they go for about a one-er.
As for cells, Demon Power Products (based in Aldershot), who've been around for donkeys, do their own Lipos, all different capacities and cheaper than the name brands (their 4000 and 5000 lipos appear exactly the same as another leading brand which are blue and have 3 letters to their name)
Alas, The above is what I use and have had (touch wood) no problems thus far.
It all depends on budget/opinion etc, Listen to a few more before you make your choice
