Mojitos! You can buy a mojito mix, mango is my favorite. But they are fairly expensive. Rose's Mojito Mix is my favorite. I believe it is around 5.75/bottle for the mix and you can make about 4 drinks. Or you can do homemade. The mint tastes amazing in it. A recipe for homemade and picture of the mix are included in the source.
Daiquiris and pina coladas are very good too. Sorry if you don't like sweet/fruity drinks, you didn't really specify tastes. But fruit definitely helps mask the flavor.
Mojito Mix: http://images.search.yahoo.com/images/view;_ylt=A0PDoS.zcjxQGmIAuuaJzbkF;_ylu=X3oDMTBlMTQ4cGxyBHNlYwNzcgRzbGsDaW1n?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3DMojito%2Bmix%26ei%3DUTF-8%26fr%3Dyfp-t-701%26tab%3Dorganic%26ri%3D2&w=300&h=300&imgurl=everydaydrinkers.com%2Fwp-content%2Fuploads%2F2007%2F10%2Fmojito.jpg&rurl=http%3A%2F%2Feverydaydrinkers.com%2F2007%2F10%2F18%2Fmojitos-with-a-mix%2F&size=17.9+KB&name=Rose%E2%80%99s+Mojito+Mix&p=Mojito+mix&oid=49c4638752a7530237d79dff605ed571&fr2=&fr=yfp-t-701&tt=Rose%25E2%2580%2599s%2BMojito%2BMix&b=0&ni=48&no=2&ts=&tab=organic&sigr=11qo7s48h&sigb=13050q9dm&sigi=11q0l1c37&.crumb=qshMMGBlpg9
Mojito Recipe: http://www.foodnetwork.com/recipes/bobby-flay/mojitos-recipe/index.html