High PR site links....

[SEO]

Hi can plz tell me that if i have a PR2 site and i want link from high PR site like PR 4,5,6 it is possible that high PR site exchange link with my site PR 2 rank....i think that if we can exchange link with High PR site then another site firstly chk ur PR if our site is not high PR site then another site not exchange link with our site.......so plz tell me is it possible that i want link from high PR site...... Thnx in advance.