My '00 DD also uses the Mizuno Samurai. She had the youth size (even though they only made it for boys at the time) for three years and it served her well. Very durable, very adjustable to grow with her, and I think pretty accurate in sizing. It says it is for 9-12 year olds and that is pretty much exactly what she wore it for. She was just starting to outgrow it this summer because she decided to start getting tall. There is still enough life left in it that my younger '03 DD will be able to use it for awhile.
In July we bought the older DD a new set of the Mizuno Samurai Women's Intermediate and it cost us $225 (free shipping) for the entire set. I actually found that when I bought it off Amazon piece by piece (at the time) it was cheaper than any other place I found it (once you included shipping charges) and I researched tons of places! There weren't any on e-bay in the color we wanted - but it is always good to check there as well. Unfortunately, I do not think there is a store that has it to try it on - at least not near where I live (in northeast Ohio).
I admit that when it came in I was a little nervous because it looks huge - but it is also very adjustable - including an interchangeable back strap for the chest pad. They say it will fit approximately 12-15 year olds and it seems to be pretty accurate. It is also very lightweight, but yet durable and protective - the chest pads have the low-rebound technology. The shin guards are grippy so they don't slide around. Just many good features. We love it! I was also a little hesitant that the Women's did not triple knee like the youth boy's did - but it hasn't been a problem and coverage is great. Shoot....I sound like I could be a salesman for the stuff! lol Just as a reference, my DD is now around 5'2" (I think) and about 115#
