Have you considered a RAID 0 configuration on your new computer with at least 4 harddisk. Since the harddisk is one of the things thats slows the computer down. (also for SSD) Im working now with 4 harddisk Westerndigital black editions in a RAID 0 configuration and indeed i got a better result in windows 7. From 5,9 with only 1 harddisk and with RAID0 4 harddisk improvement to 6,3. You can also use 4 cheaper SSD for performance, will cost you around 400 euro, SATA II will cost you around 240 euro. For my graphic card a ATI 5830 windows 7 give me a 7,6 and this is already a very good graphic card.