Hi guys, I am running a pretty budget build. Intel Celeron G530 Radeon HD 6670 Biostar TZ68A+ 8GB 1333mhz RAM Do you think it will be worth the extra £50 ($80) for a second HD 6670 in CrossFire? Do you see any potential performance issues in that neither of these cards come with a CrossFire bridge? The Z68 chipset I believe can provide enough bandwith for the PCI lanes. Any input would be appreciated. Thank you.