Definitely Blackberry gives you a professional look and experience. If your requirement is just to configure mail, then you got plenty of options including smart phones which may suits your budget.
Starting from Nokia E63 to Samsung Galaxy tab.
Smart phones that uses Android as their OS gives you better performance and experience compared to Blackberry. Recent survey says that Android based smart phones will soon overtake Blackberrys.
The technology is improving everyday. Whatever you buy today will become obsolete soon. Also Blackberry (RIM) is facing some legal concerns with Indian government to provide access to their mail servers. Considering all these face, I may go for any Android based smart phone that meets my demand and budjet.