I installed SUSE in my laptop to get rid of window allowing many viruses to come and create trouble during INTERNET browsing. Till now, it is a great experience. Most of software are available in the linux versions like Google Earth, Open Office, IBM symphony, most of browsers and email clients, Music player like VLC and realplayer. The game and functionality of the windows can be virtualized by using "PlayOnLinux" software. VMware can be installed also and guest OS can be operated inside the Linux box. It is safe untill software from unauthorised and untrusted parties are not installed and not added to the software repositary in YAST.
Being a SAP professional, most important thing for me, was SAP GUI. JAVA based presentation server from SAP is great experinace for me and it is not difficult to use JAVA based GUI. To install java based GUI, I used Sun's JVM. Open source JVM not worked for me. Steps to install SAP presentation server is ---
install.bin is a binary code of SAP GUI and can be downloaded from the SAP market place.