Most students get along well with their advisors or they change advisors. This is sometimes difficult because we are not a very big department and changing advisors often means changing into a different field within astronomy. We have plenty of workstations, CDroms, tapedrives, etc. We are also slowly evolving into a system run by PCs with Linux. It is usually pretty difficult to NOT find a computer to work on.
Many students have computers in their offices, but there are also many public workstations.
During the summer, there is an atmosphere of real work around here. While some people do take short vacations, two or three weeks, the summers are usually for us to get some good research done. The department is small enough that you can get personal attention and help whenever you need it, but big enough that people in the astronomical community know who we are. The other graduate students in the department are friendly, supportive, and fun. For the most part, you don't run into any cut-throat competition among class members and other graduate students.