Did I not buy enough RAM?

[Truthisone]

I have a Q6600 processor with 4GB of Cosair 1024 speed ram running Vista 64 bit Premium. I have very few things in the backround  (just firewall, AV, ect), but my memory never drops below 40% usage just with my firewall and drivers running.

And what do you call Vista's new hourglass because I'm getting that for about 7 seconds+ whenever I try to do something.

My CPU stays at normal levels unless I'm doing something strenuous.

[patio]

More info on the other components in the machine will be helpful...
I have the same chip and experience no slowdowns so something is amiss in your setup...

[Truthisone]

I also have this motherboard GIGABYTE GA-EP45-UD3R LGA 775
and this CPU heatsink Tuniq Tower 120 Universal CPU Cooler 120mm
an Antec 650 watt PSU
and an Antec P182 case

It did however seem to slow down a bit after I replaced my defective video card for this one EVGA 512-P3-N871-AR GeForce 9800 GTX(G92) 512MB
I don't know if that was just coincidence though.

What else would you like to know?