I'm on a budget and I drink Bohemia light which is RD53-55 for the 22 oz bottle. However, Brahama can be had for I think RD35 and it is ok. The rum runs from RD95 to 140 for the 375 ml bottle. Barcelo A?ejo can be had for RD95 while the Brugal I think runs for 125. I can't really tell the difference from the two. The ron dorado of the two brands run RD95 and 110 or so, respectivley.
Also, Barcelo just released a new vodka called "Russian Red" and it is good and only is RD100 for the 375ml bottle.
Buen provecho, just remember it's better to drink a little too little than a little too much.