What a bummer! Glad it was pretty minor and that the damage to both you and the bike was not too bad. As far as dealing with the bumps, icing the areas that are banged up will help with pain and swelling; if the pain is really bad you could take some ibuprofen or Tylenol if needed. For the road rash, make sure it's clean and then bandage it up since wounds heal best when kept moist and covered. If you have some Neosporin or something similar it's not a bad idea to put some on. I don't have any idea how much the shops charge for trueing a wheel; the best bet would be to call a few in your area and find out. Hope you feel better soon and that this doesn't stop you from getting back on the bike once you're up to it!