Viking+bunch of 0....
Stick to name brand mountain bike and put some slicks on it. That weight will disappear slowly so long as you follow a diet. as someone else posted the link to the Clydesdale forum. Your weight of 375 is just 25 over the manufacturer max. I called trek for a an old single track they advised of the 350 max capacity.
If you decide on a road bike you have alot of research to do mostly rims.
One suggestion is pick up a used bike from a local bike shop or Craigslist. Have it serviced and save your money for accessories.
Hope this helps