Hi,

You need to understand that a database is not like a file system where the amount of disk space used corresponds exactly to the size of the data. In a database more space is allocated, there is a main database file and there is a transaction log file and tables are allocated space according to various things like the fill factor size of the indexes. You can do some googling about it if you want to learn more.

My advice is keep an eye on it but don't worry too much unless it does start to get near the allowed limit, it probably is not going to grow that fast. There is really not much data in the database after a new installation but there are a lot of tables and those tables need room to grow so room is allocated for them.

I will say on my machine a new installation does not use 60MB of disk space. Probably if you make a backup of the data the backup won't be nearly that large. On this site when I backup my database its about 75MB but this site has been growing since 2004 (also this site uses MySql so it may not compare exactly to MS SQL). I'm sure the production db size is larger than the backup size again because of the padding and room to grow for tables.

Note also that if you create a large table with a lot of data and then delete the data, it does not recover the space used by the data, though there are commands you can use to recover some of it. 

In general databases should have more space allocated than actually used for data in order to perform well.

Hope that helps,

Joe