What to do, what to do?

I have a bit of a problem. I have come up with another list, only this time its a Salamander list. Its a really great list that is solid. I have a lot of the models already and could easily get it started and have it done for a Tournament in October. With that being said my Ultramarine list is a great list as well. The real problem is that I want to do both armies and at some point in time I would like to have all the First Founding Chapters (FFC). As of right now I have 5 of the FFC and already have an Ultrmarine army made of Spare Space Marine models I have. yes I know how sad is that, I have that many models just sitting around that I was able to build a 2000 point army. The only thing about this spare list is it isn't very solid, its great for Big games to help fill out my list, but just isn't solid as a tournament army. This brings me back to my problem, Salamander or Ultramarines? Both Solid list and both have a great paint scheme and history. Please Tell me what you think. Salamander list soon to follow.