Shoutbox

Hello folks!
I often like to do some video encoding and converting, as well as other activities/tasks that would use up more than 60% of my RAM. Messenger, by itself, takes up as much, if not less, of that amount.  I tried hunting down a "Page-clearer," to clear the unused pages in memory, with no avail.  I have recently stumbled upon a script known as ReduceMem, however, to my knowledge, it is not compatible with the current version of Messenger.
Therefore, my request is: Could there be a lightweight version of WLM (not WLMLite), like a third-party applications that has the necessities, such as IM, OIM, emoticons, and file transferring. This is basically what I'm looking for in an alternative for WLM. I would like to use this alternative only in cases where I'm multi-tasking so WLM wouldn't hog my memory.
I have considered a-MSN, but clearly have no clue whether it is a good pick or not, so what do you think?

Thanks!