Do you guys believe that the size or underlining/bold... of links actually affects their value? in my opinion larger links are uglier from the visitor's point of view, hence i don't use it, but if it boosts the links value, i might reconsider it.
I don't know if bolding the anchor text of the link will really matter a lot, anyways bolding and italisizing your main keywords in the text content would do some better work