slash... best motor?

[rcsammy]

well im stil waiting for my MM to come back from castle so another wait wont make any difference
plus if they are decent packs it will save me money from the truerc one i was going to get

it says "JST-XH for balance/charge and Deans style T-connector for discharge." i have a JST XH balance adapter already but when i plug it in to charge do i only need to plug the balance connector in? and not the deans plug

also would it be a good idea to get a lipo sack considering i am new to lipo's?