I am looking for a webserver monitoring tool. As of now one of my websites is hosted on Dreamhost Linux VPS, whenever there is an issue like high RAM usage , their standard response is to look in their wiki <http://wiki.dreamhost.com/PS_Optimization> 

Now I am not into servers and stuff and it becomes a real pain to interpret those shell commands. 

Is there any easy UI based tool (free or commercial) available which can help me with real time monitoring of my VPS server? (I am on Windows XP)

Appreciate your response!