Same happened me and it's much easier than you think. Colour get's trickier, and is easier to muck up, but film is far more resilient than you think (apart from a full exposure to broad daylight
)
I have a very basic setup at home. One of my favourite B&Ws is HP5+ and my dev process goes something like this:
Wait til evening/night time
Get in wardrobe (this is my dark room/dark bag
)
Put film in tank
Get chems to 20 degrees and stick dev chem in the tank.
Swoshy swoshy for about 9 minutes
Wash for about 3-5 minutes or something (can't remember exact time)
Put fix chems in... can't remember how long... maybe 3 minutes
Throw them out and wash again for about maybe 3-5 minutes
Hang em up.
Colour is at about 38 degrees which is harder to keep stable (20 degrees is close enough to room temperature)
For your list I would say the following are the only musts (apart from chemicals):
Dev tank
Thermometer
Hanging clips (at least 1 weighted)
But, I would also say that you should
really get the following too:
Storage containers (I cursed myself for not getting these first time around)
Funnel (trust me, you'll thank yourself for getting one!)
Dark bag (if you have no alternative place to load the dev tank)
Optionals which are really nice to have:
Film holders (plastic pouch/pocket thingys)
Tongs
Pipe thingy to force wash the dev tank
Another thing that I reckon isn't necessary, but will make life easier if you've a stack of cash knocking about, is one of those heat tray things with a thermostat. I don't have one, and only had 1 muck up so far!
And if you're not careful with your hands, you should probably get some type of gloves too! I presume this is both for handling the chems, and I suppose in case you touch the film or something.
Anyway, best of luck, and I won't say "have fun" because I already know you'll enjoy it immensly!