I actually went to Linens n' Things and bought the Tanita scale, because it's the same brand as the ones at my WW meetings (though for home use as opposed to the industrial use ones that they have.)
It's been really accurate compared to my meeting weigh ins, and I highly recommend it. I spent about $30 for mine at the store. I don't know much about Conair, other than that they make hair dryers! lol. While it does do body fat, I'm told it's not too accurate. For weight, I've found it to be spot on.
Looking on the web:
http://linen.abusaki.com/index.php?c..._care&s=scales It looks like the Tanita is cheaper than the others!