Where could one acquire a good quality dogi (keikogi and hakama) online and what price range would I be looking at?
Hi Lisa,
Here follows my list of web sites to which I refer students when they ask. I have dealt with all of these in the past, and have been impressed with their wares.
Depending upon just what you are looking for in a hakama, there are many different options. If you are looking for ease of use for daily practice, I would recommend an aikido hakama in 100% polyester. They wear well, practically fold themselves, and can be tossed into the washer when dirty. A little bit nicer is tetron. It feels and looks a bit like silk, but being a man-made fiber is easy to care for. The heavier weight tetron, the better it looks and moves. Indigo dyed cotton is very traditional and wears and ages nicely. It also tends to bleed, so if you sweat alot during practice, you can come out looking like a smurf! For formal dress for demonstrations and such, striped formal hakama with montsuki is the way to go. Prices can range dramatically. A decent quality dogi and hakama will run you about $90 each. Formal dress hakama and montsuki can run to about $300 each.
I will second Aikironin's vote for Bujin. They make good quality stuff, and are the only way to get a ladies cut hakama without going custom.
Mugendo Budogu has great quality stuff. However, since all of there stuff is very good quality, it is a bit pricey ...
http://budogu.com/shopsite_sc/store/html/page2.html
Daimyo Outfitters has pretty decent prices for custom made outfits ...
http://home.att.net/~daimyo.outfitters/open.html
E-bogu has very inexpensive stuff, but it is of lesser quality also. If you just want something inexpensive, they are worth looking at. Good customer service also ...
http://www.e-bogu.com/
Sword Store also carries good quality dojo wear ...
http://www.swordstore.com/
Tozando runs the whole spectrum from relatively inexpensive to very high quality. They can be hard to talk with though as they only have one English speaker at their store to answer all of the emails that they get.

...
http://www.tozando.com/en/index.html
SDK Supplies up in Canada always has decent stuff ...
http://sdksupplies.com/
I also used to buy stuff from East Coast Martial Arts Supplies, but they are currently rebuilding their web site and I have no idea when it will be back up ...
http://www.ecmas.com/
I've no doubt that there are other good stores out there, but these are ones that I've had good experiences with.