I don't think I've seen this asked yet - apologies if so! [cringe]
Short version: For those times you can't record your own material, what are your best go-to sources for libraries that don't cramp your style, assuming one might be starting a library of commercial effects from scratch?
Long version: Tim and Chuck have released small libraries at high sample rates that are specifically not over-designed, adding up to a lot of processing and mixing latitude. This is a great approach.
Given that, who's putting out the most USABLE big libraries these days? There's so many, but without naming names, some are so old and overused that they're utterly hackneyed, some are so pre-mixed/processed that they don't sit well in a mix or are too recognizable, some just aren't high-def enough for significant processing.