you are probably going to get a hundred different options; but this is what i suggest to my students. Start with a 400 speed film as it tends to be more forgiving. Either HP5 plus or Tri x.

Bulk loading is certainly cheaper long term, it is not cheaper up front as you will need to get a bulk loader ( tons on ebay) some reuseable cassettes (may or maynot be cheap, depending on the type. Once you have these items the cost will go down.
There are mixed reviews about bulk loading, it seems to be one of those things that you love or hate.

Freestyle carries several re-branded films and re-spooled Ilford. Of course there is always B&H or Adorama. Word has it that they no longer carry gray market film which is cheaper than the US version, but you could check it out.