EDIT: Here might be a good way for any volunteers to quickly rule out this same thing.
If I do:
head -c 610000000 blk0001.dat | sha256sum
Then we should all get the same results, right? (my blk0001.dat is currently 617037299 bytes long)
Mine is 808717dfd1a8af65b60243c4278aff43454fb8df3b3dc597df67265acf851642.
This is not reliable because orphan blocks are also stored there. My hash is different.