When you're playing human and your base desperately needs a reactor or an armory, the last thing you want is to surf through the menu after you've found the spot where to build.
Instant-build binds are no magic (/bind t "build mgturret;+attack;-attack"), but have you ever thought about utilizing your mouse for stuff like this? For Tremulous etc., the mouse is the easiest and most direct way to give input to the computer.
So, why not have several mouse configurations that you can invoke with a keyboard bind? To setup the mouse, make a file (e.g. "mybinds_human_mouse_quickbuild.cfg") that defines all the the mouse button and wheel effects (Yes, why not use wheel up to make a turret, wheel down to make a tesla?), and then bind the execution of that file to a key on the keyboard? For example: bind kp_enter exec mybinds_human_mouse_quickbuild.cfg
To use the keypad for these invocations is not a bad idea since it's usually directly beside the mouse, so you might even hit the keys with your mouse hand.
So, while you're waiting in the spawn queue and the rants are storming in, hit the rebind-key you made and just prepare to run to the spot and click the left mouse button to instantly cause an arm to be built. Middle mouse button for reactor is a nice idea. Right mouse button could restore the mouse bindings to normal (exec mybinds_human_mouse.cfg).
Alien side can use a similar setup (left mb for an egg, middle for overmind, wheel up for tube, wheel down for hive, right mb for normal mouse).
If you've never used the exec command, you hopefully realize now that you're missing out.
Another mouse thing: Just use the mouse wheel to select and instantly buy your weapon (works only near arm, of course). Or use the wheel to do "build mgturret", which will call the red/green ghost version of the building you want to make - and next time you use the wheel, you get a different building. So, you can just scroll through the possible buildings and will immediately see them in front of you. Same for alien side.
Obviously, this needs several different mouse setups, which is what this posting should make you try. It's a bit of work and can be confusing at first to make mutating binds, but it's worth the effort and fun to make.
