Probably the most important thing to do is to have the drive consolidate written flash pages so as to optimize write performance. This is the function of TRIM in Windows 7, but it's not built into any prior operating systems and as far as I know there's no general-purpose utility that will do it for all SSDs.
But SSD manufacturers do provide utilities to do this - for example Intel has an "SSD Toolkit" which can perform this function. Since XP doesn't do TRIM automatically it would be wise to run this type of utility every so often, perhaps weekly or monthly depending on the volume of writes that you typically do.
Yes the consolidating tool is what i am looking for. But my first SSD will be a Kingston model and i don't know if the intel tool will work with this SSD. Are there any other tools that are good ?
the tweaker tool i already found and this is what i was refering to in my post when i was talking about the fact that the SSD will be tweaked
never defrag i also read
open space will be about 30GB at least on a drive of 128GB at all times
I'm not too familiar with the Kingston drives, but I believe that some of their drives are rebranded Intels and so the tool might work for those. You should probably poke around on the Kingston site to see if there's anything available.