Suggestions wanted: Intel mobo for 8 GB of RAM

I am planning to build a new system in the next month. I'm currently planning to use an Intel quad processor, probably the Q9450. I prefer an Intel chipset mobo: P45 or X38/X48. I'll probably use either a single HD4850 or HD4870 video card. I don't want to rule out crossfire, but I'm not planning on it either (it is more nice-to-have rather than required). The same goes for RAID--I won't use it right away and probably not ever; I'm more likely to go with two hard drives mapped independently. I plan to run Vista 64-bit Ultimate. I can spend what I want, but I prefer not to waste money. I want to go with DDR2 RAM 800 (possibly faster), which is getting really cheap. I can surely live with 4 GB of RAM but given RAM prices and reports about Vista operation, I'm considering going with 8 GB (4 x 2 GB preferred, but I'll be buying the RAM so whatever).

Okay, enough background! I'm looking for recommendations for a P45 or X38/X48 mobo that can be counted on to handle 8 GB for RAM. My initial research made me inclined toward Gigabyte or Asus. I'm a bit put off by reports here an on Newegg on difficulty in getting four RAM modules to all work with Vista, but I don't know how seriously to take them. (is this a general problem or some quirky individual mobos)?

Please give me suggestions for mobos (and thanks in advance)!