choosing the right rabbit

Question
Iam thinking of getting my 7 year old daughter a 6 week old dwarf lop.Is this the best breed to get a small child. Also i've heard that female rabbits are more agressive than males. Will i have to get the rabbit neutered, and at what age does this happen. this will be her first ever pet, so i want to make sure i choose the right one. Also we will be keeping it outside, but will want to let it indoors as well, is it ok to do this.
sorry for all the questions, but we want to know as much as we can before we buy one
thank you.

Answer
Not a problem with the questions, it's good you want to know as much as you can.  For starters, I'll point you to these books:
House Rabbit Handbook and Why Does My Rabbit.  The first book is one of the best resources out there for a lot of general house rabbit information.  The second book goes into more of the the behavioral aspects.

A couple good websites to have bookmarked is:
http://www.rabbit.org/ - National House Rabbit Society
http://homepage.mac.com/mattocks/morfz/rabrefs.html - fabulous reference site, has links to a lot of health and behavioral aspects in rabbits

To answer your question, there really isn't a specific breed that's best for children.  Rabbits are like people in that each of them is different.  Some are very shy, some very friendly, some may love being held, others never.  However, there are two things that you can do to try to find the best rabbit for your daughter.
First, get an older rabbit, one that has already gone through puberty, and is spayed or neutered already.  When rabbits go through puberty, the can get more territorial and possibly aggressive.  They may lunge, box, or bite.  Also, if you get a male, he may start spraying.  If you get an older rabbit, you won't have to go through that stage, and you won't go through any of the negative behaviors that come with the hormones.  
Second, try to get your rabbit someplace that will let you and your daughter spend some time together.  This interaction may give you a better gauge of the rabbit's personality.  Some pet stores may let you do this, but you'll find this more at shelters/rescues, breeders, or people selling rabbits in classified ads.

When it comes to neutering rabbits, if the vet can see the testicles, the rabbit can be neutered.  For spays, I'm not sure what the earliest age is, like cats and dogs, each vet probably has their own preference of how young a rabbit can be to do a spay.

Your rabbit can have quarters inside and outside of your house.  If you house your bunny outside, you'll want to shelter it properly from weather extremes and you'll have to watch out for fleas and fly strike.  I've never kept rabbits outdoors, but here are some sites that deal with some of the issues of living outside:
http://www.rabbit.org/faq/sections/hazards.html
http://www.rabbit.org/faq/sections/outdoors.html
http://homepage.mac.com/mattocks/morfz/rabrefs.html#fleas
http://www.rabbit.org/journal/2-12/fly-strike.html
http://www.rabbit.org/faq/sections/warm-weather.html
http://homepage.mac.com/mattocks/morfz/rabcare.html#summer

As for keeping your bunny inside, you'll want to bunny proof the area that your bunny will be living in.  Covering cords is particularly important. This site gives some general information of what you'll need to do: http://www.rabbit.org/faq/sections/rabbit-proofing.html

Also, I'll give you links on bunny behavior and body language.  For example, your bunny may nip at you, but might be telling you to move or to give her that yummy thing that's in your hand.  Rabbits can be pretty bossy:
http://www.paperglyphs.com/rabbits/rabbittalk.html
http://www.rabbit.org/behavior/body-language.html

And here's some good information on rabbit diet.  If you do get a young rabbit, the diet of a young rabbit will be different then when it gets older, and there's a link on this page to acceptable fruits and veges: http://www.rabbit.org/faq/sections/diet.html

Hope I didn't overburden you with information, good luck with your new bun