Read Here First http://www.tomshardware.co.uk/forum/240001-11-howto-overclock-quads-duals-guide
Get some After market cooling http://www.frozencpu.com/
Nice Ram timings. I would Leave the Ram where it is.
I would Advise you to buy Some Aftermarket cooling before changing the FSB/Multiplier
Choose one int the top 8 And start saving http://www.frostytech.com/top5heatsinks.cfm
Those clocks sound like a good idea, cant really suggest anything else
Good Luck Man
Oh and welcome to Toms Hardware Newcomer