I have to say that I am very impressed with the ASRock P55DE3. It is a solid performer (with the exception of memory performance) and an excellent overclocking board. I was outright surprised when I hit 4.3GHz stable on this board. I really did not expect anything that high.
The P55DE3 is priced at $99.99 on Newegg.com. This makes it one of the lowest priced P55 boards you can pick up. True, it does not have SATA 3.0 or USB 3.0, but considering the price on those drives and peripherals, I did not expect to see them on what is clearly a value based product.
Still, while the price may say value, the performance certainly does not. We do have to say that there is an issue with memory bandwidth, but that is something that can probably be corrected with a BIOS update.
To wrap things up; the P55DE3 is a great board at a great price. It surprised us more than once during our testing and is a motherboard we can highly recommend if you are looking to keep to a budget.