Im all for womens cricket and have played against middlesex ladies a few years ago,technically they were far better than us and fitter.bowling wise there was not the real pace you would find in mens league cricket,depends on what level you play of course.ive certainly faced high sixties mph for sure so dont think the pace would be a problem-they may well get you out thou!!
The only time ive faced a bowler out and out too quick was carlos remy of sussex and leics.he was frightening quick,got home post match thou,whacked his name into cricinfo and it said 'medium pace'