@mirny: You could set your own pool on one of your PCs. Then, on the mining port you could disallow any other IPs except the IP's of your mining machines. Then you could disable the pool shares verification (you won't cheat on your own pool) in order to save the hash power for the pool machine CPU's (so you could mine on the pool machine CPU too). I think this won't be too hard to set. I'm not an expert on such type of configurations, but if I had your hashing power (I'm mining with about 130 H/s) I would give it a try. It seems the current version of the daemon could need some restarts on the pool machine (sometimes it freezes), but this could be done manually or made automatically on some adequate intervals (maybe a few times per day just to be sure?).