Just like the christmas edition, steam is back with super sales in their perils of summer sale week.
From yesterday, till july 4th, steam will be offering some mad discounts again.

I just grabbed the codemaster racing pack myself. Grid, Fuel, Dirt, Dirt2 and ToCa3 for 21,75 is a crazy good deal, especially seeing how the x360 version of Dirt2 still retails for 50 euros here.

So yeah, keep an eye on that page everyday till july 4th, cause the deals change every 24 hours :].