Hi.
I've also heard from a few women here that the GST can get heavy... but I'm sure that depends on the person, and what you put inside. I've seen the GST in black w/ gold or silver hardware (the silver is coming out for fall), beige with gold, white with silver, brown with silver (not available now; there was a distressed brown calfskin available last fall I believe, but I'm not sure if you can track that down now).
A bordeaux color (caviar leather) with silver hardware is also coming out for fall.
I love the Cotton Club tote - I have one in bronze, and find that's it's lightweight (especially for a substantial tote), and fits plenty. It has a zippered top, but I think that it's easy enough to get in and out of. Here's a pic I took a while back of mine:
http://i161.photobucket.com/albums/t208/fieryfashionista/Bronzecottonclubmodel2.jpg
If you like an unstructured tote (however, it doesn't have a zippered top), there is always the Cabas. The Khaki (my personal favorite) is coming back for fall, but black is great too, dark silver, etc. Here is a pic of my Khaki Cabas and Bronze CC tote
:
http://i161.photobucket.com/albums/t208/fieryfashionista/BronzeCottonClubv-1.jpg
If you like lambskin best, I personally adore the Vintage Ligne tote... you can find pictures in the Reference Library, and I have this in dark chocolate. It's so light, has a zipper, and is just gorgeous IMO:
http://i161.photobucket.com/albums/t208/fieryfashionista/YummychoclateyVLtote.jpg
I don't think you can find this color any longer, but this tote also came in a lighter caramel brown, black, and grey.
Sorry for writing a Chanel tote novel haha... I hope I helped a little though... good luck finding a tote!!