Re: As if I need another expensive hobby...
a basic entry level vise at around 10 bucks will suffice for starting out, or a rotary vise for $40-50 would also be a good investment
AS for tools, couple bobbins, two pairs of scissors - one with fine point for close cutting, another for general cutting, whip finish tool, dubbing needle and some hackle pliers If those are included in the kit you mention, then you should be good to go.
Best to find some easy patterns like hares ear nymph and buy the materials for that, then as you find you want to tie more patterns you'll definitely see your collection expand.
should also mention the internet is your friend, as a lot of good deals can be found on ebay for tools and materials, as well as classifieds on this forum and others.
also, some online stores include free shipping if you spend over $25, which is easy when you get stuff for a couple patterns.