I use a Lowepro Vertex 200 rucksack bag, it's a beast but me being a poor old sod it's getting a bit heavy to carry everywhere these days so I'm looking at getting a Think Tank or a Kalahari shoulder bag, something smaller with room for just the essentials.
The big bags are great until you find yourself standing in 6 inches of mud or sand and nowhere to rest the bag without it getting covered in muck!
I used to use the deviantART Camer bag, I loved it until my gear ran over what it could fit. If you have a small amount of gear I would actually highly suggest it. If you need more space, the Lowerpro DSLR 150 (smaller) or 350 (medium) I would highly suggest. [link] I own one. It holds up great. And there is a great support team behind it, a zipper broke on mine, nothing fatal, but I contacted Lowerpro, no questions asked they sent me a brand new one.
I use a military-style shoulder bag. It has a large interior, 8 additional pockets (two of which are apparently made to hold ammunition magazines, but I use them for spare memory cards and sync cables) and is entirely made of very heavy-duty nylon fibre. I bought it from a company in California for about $40. It’s big enough to hold a medium-format camera with attached digital back and lens, plus two more lenses, batteries, filters, cable release, white balance card, radio triggers, snacks, lens cleaner and cloths, and a handful of business cards. Plus it looks pretty badass.
I wish I could remember the name of the company that makes it, or what it’s called. Unfortunately, there are no logos or tags on the bag, and it’s been a few years since I got it. All I remember is that I saw it reviewed on the Wired website and figured it would make a good camera bag. I'm not positive, but I think it might’ve been called “The Attache” or “The Diplomat” or something similar. I could take a picture of it for you if that would help.
Honestly, the Kelly Moore bags are a pretty good price, I doubt you will find anything that is both fashionable and good quality for under $200. I don't think I have ever paid less than $200 for a camera bag and all i care about is function/durability. BH did a big post on fashionable camera bags in their blog though, might wanna take a look through that, could be a gem or two: [link]