Gigabyte P43 vs. P45

I've got a question.
I've been researching motherboards, mostly around the $100 dollar range. I'm pretty set on the p45 chipset, and probably going to go with either

GIGABYTE GA-EP45-UD3L LGA 775 Intel P45 ATX Intel Motherboard for $98.99
http://www.newegg.com/Product/Prod [...] 6813128372

or

GIGABYTE GA-EP45-UD3R LGA 775 Intel P45 ATX Intel Motherboard for $115 ($100 after MIR)
http://www.newegg.com/Product/Prod [...] 6813128359

but i just noticed that there is also this model, with the p43 chipset

GIGABYTE GA-EP43-UD3L LGA 775 Intel P43 ATX Intel Motherboard
http://www.newegg.com/Product/Prod [...] 6813128380

in comparing the ep43-ud3l to the ep45-ud3l, it seems they are virtually they same board, but for the memory type (p45 can go to 1366+ MHz)
are there more subtle differences between these 2 boards, or is that it? Will I be happy with the cheaper p43 board, or do you think I should just spend the extra cash for the p45
I don't plan on ever going crossfire, so the 1 PCI-e slot is of no concern, and I don't really care about having RAID capabilities either, so that it doesn't have the ICH10R chipset doesn't matter.

Any help or opinions on this board are much appreciated, thanks!