Are you convinced about switching yet?

Seriously, the number of cards you are using suggests you are no casual miner! So please invest some time to try out bfgminer, cgminer or even diablo, phoenix or poclbm. These are all tried and tested miners and will save you a lot of headache down the line once you have found your sweet spot with one of them. cgminer and bfgminer both support configuration files (see the example.conf in the same directory as the miner and edit it, rename it cgminer.conf or bfgminer.conf), which makes it very easy to make changes as you need. you can also make changes on the fly (like adding or disabling pools, changing fan speed or the intensity of the GPU etc.) and then write these changes back to the config file while your miner is running.

Believe me, i have been mining for more than a year and i tried all of them and right now using bfgminer on both linux and windows. once you get it going (which is really not that hard to do), you never look back.