Help with choosing parts for a first robot, please.

[dotDominic]

Right ok, thanks for these quick responses! I was also a silly sausage and didn't buy the right size of heat shrink for covering the joins between connectors & wires. Just wondering what do people usually use for that?
Thinking I might need to buy more wire too, so I might as well return the XT90s and buy XT60s instead. Are XT60s ok for a removable link too?
Sorry about more questions, just wanted to double check: Is the connector on the end of this battery I've bought ( http://www.hobbyking.co.uk/hobbyking...Lipo_Pack.html ) the same as this: http://www.hobbyking.co.uk/hobbyking...0pcs_set_.html ?
And if it is the same, I'd therefore need to buy those connectors too, right?