If you are not going to overclock, go with the G41 because DDR3 RAM is so much less expensive today.
You may be able to squeeze out a 10% overclock with a G41 using a Q9650, but I doubt if you can get much more.
The only other problem with the G41 (besides the limited FSB freq) is that you will have only 4 SATA ports instead of 6 or 8.
Thanks. But there is one more thing which is the use of Graphic card. i have sapphire HD6850 and i have seen that in most P43 chipset boards we get pci x16 2.0 slot while all in G41 the its PCI 1.0, Now will they make a difference with my card as its an mid range card. I also play games sometimes with friends like Battlefield 3 or CoD.