OT it looks like two outlets in one of my rooms arent grounded

[griffin8r]

It's a big deal if you're intending to connect sensitive equipment to them.

As to how expensive it is to fix? Shouldn't be that bad. Electrician kills power to that room, pulls the outlets out of the wall, ties 10-2 to the old 10-1 wire, pulls it through to the fuse box (hopefully it wasn't stapled to the wall studs) and wires it up. He puts in new outlets on the other end and bam, he's done. For 6 outlets, depending on situation variables, you're looking at a day or two worth of work.