Problems With Idiling

[porkch0p220]

I have been having trouble with my 97 camry Le 4cyl for some time now, when my car sits over night, and i start my engine, some times it stalls right out, and i have to press on the gas for alittle while untill it will idile right, you literally see the engine rpm jump up after my foot is on the gas for alittle while. i just replaced the fuel filter and fuel pump but i still nodiced when the engine is still worm i start it up and it idile's real low. i press on the gas, and the head lights brighten then dim. it hasent sit over night yet, and i still cant figure out what the problem is, i have a toyota manual. and i dont understand the diagrams. is there some easy fix i can look at for this problem. or am i going to have to take this to toyota were they can hook it up to there computer? witch i dont want to do becouse i dont have the money for it. well if some one could help me figure this out, it will be a Very big help becouse i am stumpt