I usually advise people not to buy violins and bows online. You are much better off to go to your nearest violin shop and try a few bows in the shop.

However, these are quite cheap bows so you will not be losing too much money if they turn out to be not as good as they appear to be.

Of the two bows, the first one is much better ; Brazilwood with Mongolian horsehair.
Bows of this quality usually only last 12-18 months so if you get 12 months use out of it then you are doing okay.

EDIT : You only rehair good quality bows. It is not worth rehairing a cheap bow.

I don’t think either one of those choices are good; they’re no-name bows from no-name companies. Why not get a decent Glasser bow? See:

http://beststudentviolins.com/GlasserBows.html#AdvComp

I looked at both of the bows and they both seem to be 3/4 size bows! If you are currently playing a three quarter size violin, they may be appropriate, but if you are playing a full size instrument, you should get a full size bow (just a little more length) to go with it.

http://www.amazon.com/Economy-Violin-Bow-4/dp/B0002FOY1Y/ref=sr_1_17?ie=UTF8&s=musical-instruments&qid=1209482625&sr=1-17

I understand that many times it is more expensive to get a bow rehaired than it is to buy a new one, but you should call the luthiers (as well as ask your teacher) if there are any luthiers in the area that rehair bows for a reasonable fee.

Your "Winding" can also be rewrapped by the same luthier if the bow is a good one. If the bow is inexpensive, it may not be worth it of course

Best of luck no matter what you decide to do and I hope this helps.