I'm kind of a big deal in Redmond - New update!

Source Engine Changes (TF2, DoD:S, HL2:DM)

• Dramatically improved the dynamic model loading system's memory usage, performance, and stability
• Reduced memory usage on systems running Windows XP, Windows Vista, and Windows 7
• Improved alt-tab handling under Windows Vista and Windows 7 

Admin: this will be welcome news to most windows users (99% of TF2 community).

PSA: don't give me your uncraftables

Just a word of warning to all those traders out in TF2 land: mouse-over all items in your trade window.  Many trades in our experience have people putting up "uncraftable" (ie. dirty) items on unsuspecting victims.  It's very common and easy to stop.  You just have to pay attention.  That is all.  Carry on.