Max, simply out of curiousity and of course to provide you with the most efficient solution based on your inquiry, what exactly will you be using this configuration for?
I suppose that my initial concern is that raid1 is extremely inefficient and it's high overhead. Indeed, two similar drives (pata or sata) will work with the proper pata or sata controller. However you will want to make sure that the drives used in this confiruation meet the requirements for your needs.
As for your motherboard question... Yes, most newer mothboards these days provide controllers for your basic, dual drive minimum, Raid configurations (0, 1) and (0+1 if you happen to be blessed with 4 drives). The raid controllers simply integrated rather than added through a slot.