Installing SBS 2003

Hello!
I have a new DELL server ,conf 2GB RAM,XEON Processor,250 GB SATA HDD.I want to install SBS 2003 ,but i dont know how to start,i have never installed a server before ,can someone please send me links,suggestions..etc
What i want server to do
1>file and print,DHCP,mail & web server services
2>Share point service
3>Exchage server
4>Active Directory
thanks and regards