I don't blame you... searching for old topics takes too much effort and never seems to find what you're looking for anyway.
I own the BRS biochem and have borrowed the HY biochem from our library, and while I liked the BRS, I was really disappointed by the HY book. It seemed to lack all the really important clinical correlations that other books like BRS cover rather well. However, I've heard from quite a large number of folks that Lippincott's Biochemistry is an excellent biochem review. It's kinda long, and I don't know how much time you have, but if you think it's worth it, try and check it out from the library or something and give it a shot.
I think it's safe to say that biochem on the step 1 is about 10-20% of the exam. I'd stick with First Aid, Lippincott's, and/or BRS.