The scenario is a small company with a few hundred users. ISA Server 2006 (at time of writing) will be implemented primarily to restrict websurfing and various applications like instant messaging per user.
My experience with ISA server has been on HP Proliant DL360s and DL380s - is there any reason to reccomend some other server or configuration?
The DL360 is the least expandible, the G5 has one full-height slot to add a 4-port network card. But even this should be sufficient for the web proxy role?