At this level I am able to design and develop custom theme, but I don't know how to implement JQuery Slider.. I mean if we have already installed a theme on wordpress then we can easily put some jquery effects and sliders in that theme using wordpress plug-in option, but I want to know if I or anyone is creating custom theme then how could he implement JQuery slider on that theme? I have to write more code to do that, I have to leave space for the JQuery slider.. or what to do.. hope you guys get my point.
If you are building custom WP themes, Take a look at Twitter Bootstrap. It offers a ready-made slider using jQuery. You might be able to roll it right in.