the extensions you need to be using are
m2e pro - to sync you rodder with ebay, amazon and play.com for free
magmi - to export and backup your product lists
one step checkout - to increase your checkout conversions
Zend OPcache for page caching
and a CDN to save your bandwidth
m2e pro - to sync you rodder with ebay, amazon and play.com for free
magmi - to export and backup your product lists
one step checkout - to increase your checkout conversions
Zend OPcache for page caching
and a CDN to save your bandwidth