My next system when I replace this one will certainly have an SSD as the primary drive as I can't put one on this XP Pro system.
Ahh! saying that, I had problems trying to get an XP install to actually boot after it installed, can you shed light on that?, It was also the day I built it, (4 months ago) but in all honesty, if you want those fast scans and general better performance, get the SSD.