I have a good experience overall WordPress theme and plugin development.
You will get those services below :--
1. PSD to HTML Convert 2. PSD to Responsive website 3. twitter Bootstrap frame work and mobile friendly website 4. SEO Optimize code and browser compatibility 5. PSD to WordrPress theme 6.HTML to WordPress theme 7. Plugin customize and development 8. Theme customize and development 9. Custom post type and widgets development
Note: This gig only for theme and plugin customization . Extra services may include more charge