new to debian

[Scott Hansen <scott.t.hansen@comcast.net>]

Greetings,

I downloaded iso disks of Debian and did an install.  I am new to 
Debian, and Linux as a whole.  The question I have is thatI do not know 
how to get a gui login or to activate a gui like kde.  Could you help me 
with this.  As soon as I can get a gui up and test drive Debian I will 
gladly send money to support it.  Also, only disk 1 was needed for the 
install even though I selected the desktop environments, games, 
scientific, and 3 of the four developer packages.  Did I screw up the 
install?

Thank you for your time,

Scott Hansen