I would probably go for it as I'm fairly confident there shouldn't be any performance issues. However I would say make sure you have good backups, and make sure you check with your third party software suppliers that their stuff is compatible with whatever you decide to (most stuff is and stuff that is not can generally be updated).
By your command sir
However, after purchasing said software, Apple informed me that it would be 'delivered' in 1-3 business days
Bearing in mind that I paid last wednesday and we've just had a weekend, it is now the best part of 5 days gone without any satisfaction. The Apple/customer relationship has always been very good, so why on earth would they need more than a few seconds after being paid to send a link to the download instead of days ?
SHJ