Upgraded from 512 to 1024 ram. Now, how to fine tune the system?

[Bruno Buys <brunobuys@gmail.com>]

Just bought an extra 512mb ram module, to add to my existing 512mb. Free 
reports the total correctly, but i was wondering if is there any way 
that i fine tune my system for better use of this memory. That's the 
first time i run a 1gb pc :)!
Any help?

specs are:

mobo abit  kv8-pro 754 (k8t800pro and via vt8237 south)
sempron 2600
1 Gb mem
pixel view tv capture card
onboard sound & eth

i do some video/audio editing and lots of gimp editing, as a top 
mem-consuming tasks.