Binary retrieval - *Best practice* recommendations...

Hi,
I have a table in postgreSQL, ver. 7.4.1, which serves up image 
data(JPEG) to users browsers. In various posts I have read there has 
been a favour towards storing image data as bytea (byte[]) instead of 
storing the filesystem  location of the image, or whatever binary data 
is, in the database. I have decided to store my images on the database 
and wanted to know what *best practice* performance tweaks you suggest 
I make to postgreSQL in terms of minimising the time it takes to serve 
binary data to users?
many thanks in advance


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