Nuzzer, not that I'm aware of and I know I can't make anything on those two weekends anyway - for the first one we're actually travelling away ourselves so we won't be in the country and we have commitments for the following one too.
However there are a LOT of London-based DPCers so perhaps if you open a thread with the actual dates in the title and ask if anyone would like to meet you on any of those dates you might have some luck.
