Take a look at the ASUS 1155 socket series with the H67 chip set for integrated graphics. Anything for the P8H67 series (there are currently 3 models to choose from) will do the job for you. Note they are m-ATX sized boards...a bit smaller than standard ATX (they are square rather than rectangular if this matters). There are a number of reviews available on the web. Just Google it. Checkout the ASUS web site for details on the differences between the three models.
Watch what RAM you buy....try to find stuff on the QVL that runs to spec at 1.5v.
No offence but I am curious why are you thinking about RAID with a setup like this? The reason I say this is because raid doesn't make a lot of sense to me considering you are running integrated graphics. If you want a fast operating system start, consider using a Western Digital VRaptor HDD or an SSD.
Hope this helps.