You can get a lot of SEGA games for just a few dollars on the Humble Bundle Weekly Sales site. Pay what you want and you will get Alpha Protocol, Company of Heroes, Rome: Total War and Wrath of the Dead Rabbit.
If you pay more than the average price that users paid (at the moment the price is at $5.99 while I write the article), you will get five more games. Sonic & All-stars Racing Transformed, Binary Domain, Renegade Ops, Medieval II: Total War and 10 Classic SEGA Genesis Games. You will find the average price on the Humble Bundle site. As said, the price is changing according to what people paid for the bundle.
if this is a bargain? I would say yes, even if there are a few games in the list that probably no body needs. But Company of Heroes, Rome: Total War and Medieval II: Total War should be argument enough to get the bundle, if you don´t have the three games yet. They are great strategy games. The offer runs for 7 days.
Oh and if you pay round about $15, then you will get Total War: Shogun II added too. I think that are some strategy games that should keep you busy.
And as always, you can decide which charity should get your money!