1:1 means running the ram at the same speed as the fsb, the fsb is pretty much just a base # that everything multiplies off of, the HTT which replaced the actual fsb has a multi of 5, the CPU has different Multi's depending on what CPU you have, yours is a 3200 which has a multi of 10.
I'm assuming that your motherboard is a socket 939, if not then these aren't the explinations of your rig but you'll get an idea hopefully.
DDR = double data rate (two way speed)
CPU multi x fsb = clock speed (your stock is 10 x 200 = 2000mhz)
HTT multi x fsb = htt speed (5 x 200 = 1000mhz (this is DDR so actual 2000mhz speed))
Ram actually runs 200mhz stock but DDR makes it 400mhz actual (for pc3200)
This is the basics, to OC your system you move the fsb up and that moves everything to higher speeds, your ram is rated for a good bit of speed so you shouldn't have to worry about ram timings just the vcore of the CPU and the vdimm of the ram, you may need to increase each if you have an unstable overclock but don't increase either of them very much. From this point there's a lot more to explain so yes find a FAQ or GUIDE to overclocking. Hope I helped some, good luck.