i want to monitor my system resources

my meager 256 mb of ram isn’t cutting it. from what i’m told the latest version of OSX is a bit more of a system hog. i thought it would be sufficient, but clearly i need to upgrade. i don’t have the money for that this second, so in the meantime i’d like to find a program to monitor how much resources i’m using to run all the programs i run at one time. and try to figure out the best way to make it run smoother. i realize i’m cutting corners here, but i cant afford more ram right now. i will be buying it soon. it is for OSX v10.4. thanks.

nevermind. i figured it out.