You need an expert linkbuilder but remember google pagerank is just one factor in getting your keywords ranked at the top of google . You need onsite optimization(optimization of the meta-tags, htags, header and title optimization and this is the easy work. You then need a professional link builder that knows certain techniques that can get u inbound links. Remember reciprocal links (your link on their page for their link on your page) is just about worthless after their last few updates. YOu need relevant inbound links on other google indexed links.
I will email u some info on a good link builder.