There's a sale going on at RPGNow - the New Year, New Game! Sale.
First off, we have bundles of Doctor Who, A Song of Ice and Fire, stars Without Number, Mummy: The Curse, Scarred Lands and Ashen Stars. You can see the "Starter" bundles here.
Then we have nearly a 1,000 other releases on sale for 20% off. White Star, DCC RPG, Crypts and Thing, Starships & Spacemen, Apes Victorious and others.
Here's the link for items tagged specifically as OSR, but its a limited selection that is properly tagged.
Remember, all purchases using The Tavern's OBS affiliate links puts 5% of your purchase price into The Tavern's coffers. Don't leave that money on the table for the greedy corps! Tip your barman! ;)