One-to-one Wordpress help and advice

I am a graphic designer and am setting up a website in Wordpress. I'm new to Wordpress and have managed to teach myself how to use it but it would be really useful to have someone who is an expert to be able to ask questions if I get stuck. I am also frustrated by the lack of control I have in Wordpress on the design side. I know HTML but not CSS so I'm not able to customise themes. Someone has suggested Artisteer but it's a PC programme and I use a Mac. Does anyone have advice about this? I am looking for someone who knows Wordpress, CSS and Artisteer who can give me some general help and also some overall advice on how to proceed with the design side. I am happy to pay by the hour and can chat via Skype.