started off with a new mountain bike and was going to upgrade all of the drivetrain but I'm a graduate student so funds are tight so in the meantime I just converted it to a single speed to save weight and money.....then I took it out and rode some trails on it and it is awesome...

After riding the singlespeed and looking around on fgg and here I decided to buy a fixed gear and now thats the only bike I ride unless I am going to the trails for mountain biking