Seeking OSC Webmaster in the USA

I have a live OSC ecommerce site that needs numerous tweaks and modifications. MUST be thoroughly versed in OSC coding and able to produce EXACTING PROFESSIONAL work including graphics. MUST be located in the USA as my experience with providers in other countries have been 100% negative and substandard. Most important here is skill level. Please do not bid unless you are 100% confident in your abilities, 1) a master coder in OSC. 2) a highly skilled graphic artist capable of exacting detail, symmetry, and visually appealing web 2.0 graphics. This will be paid hourly, initially for 5 hours, then ongoing on an as needed basis.