Getting high PR one way backlinks from related niches is what I consider as the high quality backlinks...
just optimise your site for keywords and your websites should be in neat and easy to navigate. it should not be like web of links....It should like links on web. hope this will do better. Regards Vaseem Raza
As you have seen many folks have given quite a lot of good advice, so I dont want to repeat the same. I would rather say that you need to spend time in creatin a killer content and service. This will call for natural links and for sure, you will get quality links. Rather focussing on vigorous link building, try this for a month and you will be surprized.