I will be starting quite a few veggies this coming spring (live way north) inside, in a room I have wired for lights. I typically use Pro-Mix, or Sunshine Mix (basically sterilized peat?) as that's what I can buy by the large bale locally. I really want to get these off to a great start and while the medium is *okay* I am sure there are better products to use-or, is there something to add to it? There is NO topsoil (dirt) available here as it's all frozen. So pre bagged stuff is all I can get. We do have some garden centers and a WalMart tho. I thought about starting the seeds themselves in vermiculite (if I can find the right grind) and then transplanting to ProMix? Any tips or hints for me?