Diamond is awesome, and a beautiful drive from Roseburg! There are lots of good lakes between Bend and Diamond lake, but you should check out Diamond if you haven't been there yet. If you plan on fishing 2 rods at once, you might need a permit. I'm not sure about the regs down there, but it is required around here so check ODFW to be safe. There is also some awesome trout fishing in the McKenzie, right in your backyard. Good luck!