Gigabyte's GA-EX58-UD3R is, discounting possible sale prices, currently the cheapest Core i7 motherboard than money can buy. At a price of $199 dollars, this Gigabyte X58 motherboard has a price comparable to mid-range enthusiast motherboards for the older LGA 775 socket. That's a very impressive value. This may still be much more than you'd pay for a middle-of-the-road P45 motherboard, but it goes a long way towards negating the early-adopter penalty that current Core i7 buyers face.
Even better, this is a Gigabyte board. It is not odd to see budget-minded board makers like ASRock or Bioware come out with cheap boards. And it isn't unusual to see their users complain about defects and missing features. But this board should be as sturdy as any other Gigabyte product, which is plenty sturdy.
There are a few things missing from the EX58-UD3R. The board only has 4 RAM slots, compared to the six found on many X58 boards, which means the ways you can configure your RAM will be more limited than on other X58 boards. Also, this board lacks SLI support, which can be found on many Core i7 motherboards. However, it does support ATI's Crossfire.
All things considered, the GA-EX58-UD3R is an outstanding value. If you'd like to purchase the Core i7, but want to try and keep the costs as low as possible, this is the motherboard to buy.