You are missing some block data starting 353055, which is why Armory can't scan any futher.
In your blocks folder, you should delete the last few blk files, probably up to blk00320.dat (315 to be on safe side) and the associated rev files (rev00320.dat and so on). Then start BitcoinQt, it will tell you its DB is corrupt and rebuild it from scratch, download the last few missing files in the process.
Once that is done, start Armory, it should recover from that.
OK, I will do that ... but I find it really weird that neither Satoshi,
nor Armory detects the missing/corrupted block data.
(Or at least none of them complains.)