The type of leathers that you'd use for track/street riding will all of the protection that you need but it'll be really hot, it sucks to get them muddy, and you'll look stupid. Experience and size are probably enough that you could expect to live the very important first 100 feet on most bikes. I would tend to look at smaller options given your weight/experience and say that some of the heavy or big bore bikes won't be great to start with. One thing that you didn't say was budget. A couple thousand can get you riding with used or well shopped gear and a well shopped bike. I kind of like a WR250X/KTM200/drz400 or something along those lines but you're looking at closer to 5k to be riding. The gear lists above are pretty accurate for what you want to wear. You might luck out and find a deal that's a getting out of sport sale with everything in the right size but it isn't hard to add 500-1000 for all of the gear..Thanks everyone for replies and suggestions.
Saw few questions, so here are the answers. I am 5'10 and about 160lbs. Riding wise so far did street riding for 3 seasons (almost 20K so not that much) and some track time.
Like mentioned before, I am leaning towards dirt only as I could just load it up in the van and go. This way I dont have to worry about insurance if nothing else.
In regards to gear, I saw that people wear a bunch of different things. I am guessing leathers are too much? I havent seen many ride with street leathers dirt. Maybe I just wasnt looking hard enough.
Popkum is where you will break the bones. Remember Rossi's dad: "the motorcross is not the way to ride the motorcycle"+1 for popkum. Full day rental with full gear. half a day of training, half a day of exploration.
+2 for bill to have some time out under real conditions.