Yes - very bossy!
I was actually thinking of doing a sticky for WCGS (if I can remember that far back), I will try and do it this weekend if I get a chance.
With regards to the other posts - you will need to find out what exactly the girls' exams consist of (as Shaftsbury said). You will find lots of usual info on this site but bare in mind that exams can and do change (if only occasionally), a good place to start are the schools' websites.
Definitely recommend Amazon, I think I got all of DS's books from there. I started DS off on the Bond, to give a broad a practice as possible then switched to the SD books - I thought the papers one was good. Wally Boys set all their own papers but I think Wally Girls VR is set by NFER so you may want to stick with them. Sometimes a bit of variety can help keep them interested though. Also, I don't think they test for English (unlike the boys' schools), only maths & VR (don't know about NVR).
silverkaylah - bearing in mind that your DD will probably get homework from her tutor, I personally would be reluctant to up it to twice a week as you don't want her to burn out but I also think that you need to decide what is best. I think it helped that we tried really hard to keep a balance with the extra work and other activities and school work. DS carried on with his after school activities and there were some weeks when he would get very tired and we just cut right back on the homework for that week. I would rather he did less but do it well than a lot that wasn't very good. We had a very understanding tutor who knew not to push him too hard. My DS went to his tutor once a week for about a year and had a break for all the holidays except the last summer one (his tutor did take a month off in June though). Also, we avoided doing any papers until the summer hols before the exams, although he did do quite a few during the hols to work on his timings.
The other thing i would recommend though, is having your DDs sit the Sutton Grammar mock test (you'll find details on their w/s). It gives the DCs the experience of sitting an exam and lets them know what to expect so hopefully the real deal won't be too daunting for them.
Hope this helps a bit - more experienced with the boys exams but will have a DD sitting for Wally Girls in a couple of years (gulp!)