Hmm. I hear ya. I had a feeling this is just the tip of the iceberg. I was thinking that perhaps a generic class could be created that would handle synchronyzation issues between UI threads and others. I can see it taking in A Thread, A Thread Target (A control? A Delegate?) and another set of options and perhaps shared memory Objects (Through interfaces). Then it would handle the incoming streams of events from each thread, making sure each behaves correctly according to the options specified. I bet there is a pattern in here somewhere that someone has written about But i just don't know about it. MVC seems less relevant here, although i suspect it is part of the solution. Oh well. It's the hard(a.k.a cool) stuff that is the most fun, isn't it? ;)