Particle_Man
Explorer
In 3.5 you need quickdraw to attack more than once/round with a sling, or with shurikens. I mean its not like everyone gets proficiency with a bow, or has the strength to use a crossbow w/o an encumbrance penalty. 
I too wish there were a feat like Quicksheath. Having to drop weapons to draw new ones can make for a cluttered battlefield, and if you keep having to change tactics mid-combat (someone with a much better movement than you runs away (and does something horrible at range - a spell perhaps) when you have a meelee weapon and spring attacks when you have a missle weapon), can reduce your options.

I too wish there were a feat like Quicksheath. Having to drop weapons to draw new ones can make for a cluttered battlefield, and if you keep having to change tactics mid-combat (someone with a much better movement than you runs away (and does something horrible at range - a spell perhaps) when you have a meelee weapon and spring attacks when you have a missle weapon), can reduce your options.