Colin,
Take a look at this. I shot one like this for several years at registered sporting clays, and only sold it because I got a great deal on a Perazzi. This is the most under-rated O/U on the market, IMO. The workmanship is second to no machine made gun. The tolerances were held so tight by Valmet that every barrel set I've ever seen would interchange with every other receiver, without tedious fitting, and I've seen a lot of them. Exact same lockup as on a Krieghoff and Remington 32. Can be totally tight and on face with the top lever left of center.
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=385641908 I sold mine for $1200, as I recall, with a complete set of aftermarket chokes, but it was in a little bit better condition than this.
SRH