[ZhannaSchonfeld]

Speaking as a designer, it's simply a case of you get what you pay for. The designers on dribbble are very very high quality, best of the best, well-known names in the industry, so there is a reason why they charge that much. If you can't pay their rate, you aren't their type of client. Besides, I wouldn't start there if you are just looking to get something up. Themeforest or WooThemes is a good option, you can get someone (or yourself) to do minor modifications the psd files to suit you.

My own rate is $80/hr and depending on the job one page usually takes me around 8-10 hours. Don't underestimate the power of UI design...you are looking for conversions, after all. It helps, too, if you do a little research on why and how good design works in your favor. Having that knowledge will give you leverage and prevent you from being overcharged for sub-par work. Best of luck.

http://forrst.me/zhanna/posts