CBPP has a very good piece on the new budget resolution's appropriations cap (emph. mine).
The Congressional budget plan assumes that funding for non-defense appropriations for 2008 will be increased by $13.5 billion, or 3.1 percent, above the CBO baseline level, which equals the 2007 funding level, adjusted only for inflation. (See Table 1.) President Bush's budget, in contrast, calls for non-defense funding to be cut $9.7 billion, or 2.2 percent below the CBO baseline.