i would recommend going to a couple of walkons and seeing what guns everyone has people will be more than welcome to let u try and see what u like before u purchase or go to your local paintball store.
as for gloves and packs dont spend money on cheap packs the Dye ones are prob your best bet if ur getting lock lids as some packs hold the locklids to tight due to there bubbles , i would recommend you get a dye battle pack there £30 brand new and u wont regreat it ,
Pads etc are pointless unless u play all the time and play lots of speed ball, theres no point spending money on 2nd hand equiptment thats not going to fit or is worn out and will need replacing.
talk to Fatbobs , Slothball , or my fav Lips