Mine hangs around 6 when first starting the engine, and then settles around 4 when driving normally.
When accelerating / hard revving it climbs again to around 6 or so. At idle it can go as low as 2 1/2 -3 but i have never seen it any lower.
There was another post here awhile ago regarding oil pressure as well, might pay to go back a few pages as there were alot of people putting their oil pressure readings on that.
hope that helps .
Kev.