Hmm, couldn't figure out how to edit my post (only seem to be able to edit the title)
Update 1: Well, apparently you can have a sole proprietorship and have it be an llc as well. Thought they were seperate, but I guess not. I should probably research the different types of business there can be, and see which ones pay the corporate tax rate and which ones the personal tax rate.
Update 2: Okay, I think I have a better understanding now (if I'm wrong on any of this, let me know). You can have a sole proprietorship, a partnership, a C corporation, an S corporation, or an LLC. The sole proprietorship, partner ship, and S corporation are all taxed as personal income tax, while the C corporation is taxed as corporations (and the dividends, and owner's income are taxed as income tax). For an LLC, you can choose which way you are to be taxed. So the first group would be effected by Obama's plan, while the second group would not be as I understand it.
Update 3: Okay, I think I found the information I was looking for. 6% of those in a sole proprietorship make over $250,000, 33% of those in a partnership, and 40% of those in an S Corp make over $250,000.