Rob,
I like to poke holes in the roast with a small sharp knife. I put pieces of bacon and garlic in the holes, and then I cover the roast with slices of bacon. Season with salt and pepper; place vegetables like potatoes, onion, parsnip, cellery and carrot beside the roast. Put a 1/2 cup of red wine and 1/2 cup of water into roasting pan. Roast at whatever temperature you normally do your roast till done how you like it. Make sure there is always some liquid in the pan; add some if necessary. When done, put the vegetables, except potatoes, and juices in a blender, add a couple od dollops of sour cream and some red wine. Blend until smooth. Slice the roast and smother with the sauce. Try not to use too many onions or carrots because it makes the sauce sweet. You can season the sauce to adjust flavour.