Here are pictures of my two Star Wars Clonewars Snow Bunny Padme capes.  The first one was made with the wrong colors.  The fleece was an off white, the lining was white, and the trim was way too blue.  My new one has all the correct colors now.  The fleece is a super soft pile in bright white, the lining is an ice blue silk, and the trim is a soft baby blue marribou feather boa.  The first one has since been given away.
The body suit was purchased at www.dannyswarehouse.com - they are a discount surplus dance supply store - everything is $10 there.  I can't guaruntee that they have the body suit in stock right now, but keep checking.
The hoodie was purchased online for $12 as well (sorry I can't remember where, but it was another dance supply place).
The trim on the second cape was bought at a local trim shop for $6 a boa (6 feet per boa).  You can get them online or ebay too.
The boots were purchased on ebay, but the seller was very rude to me and I won't recomend them to anyone.  Just search 'white boots' on ebay - you'll find MANY pairs.
Fabrics were purchased online and at local fabric stores.
The gloves were an ebay purchase as well - for $5.
I made the belt and holster from white leather wrapped around cardboard (holds GREAT).  The gun was purchased from a friend locally.

Clone Wars Snow Bunny Outfit

1. Cape
    I used a bright white cotton polar fleece that had a nice soft pile.  White is a must, whether you use fleece, plush, or velvet.  The inside is lined in an ice/baby blue, this is visible in the maquette and the cartoon.  I used a silk for the lining, very plain, but still stylish enough for Padme.  The Blue trim on the maqutte looks like a very flowy puffy trim - so I used ostritch feather trim for mine (3" diameter).  It flows and moves with the slightest breeze and is very lightweight so it won't drag your cape down.  The cape is a half circle with a hood and has two little balls on strings.  I keep my cloak closed with a hook and eye, its easier than tying it closed all the time.
2.  Body suit
    I used a white lycra unitard for mine, but you can use pants and a shirt too.  Though the way the belt sits, I recomend very low rise pants and a long shirt.  Some shots in the cartoon you can see a zipper in the front (like when she takes off the cloak to distract the droids), some you can't.  I say go with what works for you.  Obviously a unitard will have a zipper, most likely in the front.  Unitards are availble at dance supply stores.
3.  Balaclava (Hoodie under the cape)
    Since Padme wears one, I think it's an essetial peice.  It's actually part of the body suit, but a seperate peice is more comfortable.  Not only does it mean you don't need a hair do, but it will keep all your hair out of your face :-)  When I couldn't find mine the second time I wore it at C3, I was constantly trying to keep my hair out of my face, and had nothing to anchor the hood to.  I found that a well placed saftey pin kept my cape hood up in even the windiest conditions in Indy :-)  The little hoodie can be bought at a dance supply store for about $12.
4.  Boots
    As long as they are white and knee high, it works.  I think that 2" heel is the highest I'd go on it though - no 6" gogo boots.  They also need the little feather/fur trim on top.  For my trim I took a peice that was long enough to wrap around my leg where the top of the boot sat, and sewed a hook and eye to the ends to keep it on.  This way I can use the boots for other costumes as well.
5.   Gloves
  I used white cotton gloves that came up past my wrist a bit.  I sewed four hook and eyes onto the gloves and trim so it can be removed and the gloves cleaned easier.
6.  Belt, Hoster, and Gun
    Its pretty much like the Ep 2 Battle padme belt.  I used white leather and made the holster for my gun.  The gun I used is the Ep 2 small blaster (thanks to Reaper).  In some shots you can make out a pouch and others you can't, I think its an option.