Well I figured that if you have a MasterPassword , then you could use either portable , downloadable or web based retrieval system to find any given password to any such site that PWM was used to manage the passwords?..
therefore would you not download/install PWM into the new machines browser (Firefox) and enter your MPW to be allowed to log into respective sites?
if you have multiple passwords for say social network sites = 1 password
for banks = different password then you would only need to remember these 2 passwords as well as the protocols used to encrypt them of course.
perhaps thats where things get complicated , forgetting the protocols used to generate the passwords for such sites.
personally I use limited protocols with 10-12 alphanumeric hash combination's for Banks and 8-10 for personal , i have 2 MPW's and thats it.
when I goto work I install the firefox plugin and set up the 2 accounts with their respective protocols.
enter the MPW and wala instant access to all.