+1 for the Yita, I have not seen a good viable wooden one for similar cash, waste pipe tube is also good or a snooker cue case if you find one long enough. I would not rush out and buy anything else yet until you know what the bass you get comes with, I dont have a trolley or a wheel etc and my gig bag (body bag!) came free with the Gedo bass, its cheap but functional for now, it even came with a German wooden bow but its no Yita, and a pot of Pops Rosin.
Rufus Reid's Evolving Bassist is the bible around here and maybe a metronome of some sort if you want to buy some goodies though, I have an Alesis drum machine and all that set up in my little room but I bought a little Korg metronome MA-1 so I can take it anywhere.
Good choice anyway, it is great fun