In reply to Dr Avid: Oooh I forgot. With lenses...a revelation that took me a long time to make.....low f numbers ARE good
Faster shutter speeds in low light are very helpful...unfortunately they cost a lot.
I would stay away form ultra budget lenses....if you are getting a 300mm zoom for a hundred quid, it sounds too good to be true, and it almost certainly is. They are ok in bright sunshine, but anything other than that, I struggle to get a decent sharp picture from lenses like that, but then again, maybe I am just rubbish
Unfortuantely with lenses, good ones make your life a whole lot easier, but cost a bomb. Shit ones are cheap but will limit your photography a lot....the trick is finding the prefect middle ground between the two, which is I know, no help at all