Five goodies that will give you all kindsa new sound.
Analog Warfare 2.5, a bass VSTi from Angular Momentum. (The download link is actually here. It says you have to register, but I didn't, and got it with no trouble.) Going to the Freeware VSTs section, from the first link above, you can also get WaveDraw Free, a synth that allows you to draw your own waveforms.
NUSofting's Marimka, a physical modelling synth for ethnic percussion. Free unless you use it in a commercial project, then only $19.
Clone Ensemble, which you can hear at work in "Death By Wubbie". That chorus took me about eight freakin' mouse clicks, and singing the lines twice, two copy-and-drags and BAM. You can also use it for instrumentation. The tricky part is registration: You can use it, but until you cough up $25, none of the controls work. ;)
Magnus' Ambience freeware reverb unit. Holy crap. He'd like donations, and does this baby ever deserve 'em.
Any goodies you've found lately, or anything cool you've done with what you've got?