Heat olive oil in a large heavy bottomed frying pan over medium heat.
Season the shrimp and scallops with salt and pepper; quickly sauté for a few minutes until almost completely cooked.
Remove the seafood from the pan; set aside while you prepare the sauce.
Add the garlic to the pan and sauté for only about 30 seconds - just enough to soften.
Add the white wine and simmer until the volume is reduced by half; add the cream, Dijon mustard, tarragon, salt and pepper.
Simmer until sauce thickens enough to coat a metal spoon.
Return seafood to to the sauce; add the red pepper and chopped sundried tomatoes; simmer for an additional 2 to 5 minutes.
Serve over cooked linguine.
Sprinkle with chopped crisp cooked bacon.