Looking for mobo

My goal: I'm building a rig that will start off using a E5200 Wolfdale with 4GB DDR2 RAM.

In a year or two I plan to OC the CPU to 3.5GHZ+. Should I get better cooling for this? For ex: http://www.newegg.ca/Product/Produ [...] 6835150082

Eventually, as a last push, I plan to replace the CPU with a good quad core. For this I will need a mobo that will support the E5200 Wolfdale and support overclocking as much as possible.

I'd like to avoid changing mobo's so it will have to support a quad core as well. Unless of course, it is advisable to simply get a cheap E5200 mobo now and then when I switch to quad core, get a cheap quad core mobo in the future.

If you won't overclock it now, then you don't yet need that noisy HSF. For overclocking, you could buy a Gigabyte GA-EP45-UD3P or GA-EP45-UD3R. Most motherboards support Quad Core CPUs.

Apparently GIGABYTE GA-EP43-UD3L LGA 775 Intel P43 ATX Intel Motherboard - Retail does not support 1066 DDR2 RAM.

I will be using

CORSAIR 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model TWIN2X4096-8500C5 - Retail RAM. Will this RAM fit either EP45-UD3R / EP45-UD3P?

I also found another board $40.00 cheaper. The EP45-UD3L.

Basically lookin' at the EP45 UD3L, UD3R and UD3P. Can you tell me the main diff? I checked the specs and they all run socket 775, Core 2 Duo / Extreme and Quad, DDR2 1066 RAM.

Edit: Holy ***, just noticed the EP45-UD3P supports P4! Does this mean I could still use my old school P4 3.0Ghz HT cpu? =) =)