Increased web traffic

We have been experiencing a huge increase in web-traffic since our recent upgrades. This is good, and this is bad. We have been receiving a lot of feedback about down-time. For this reason we have had to increase the capacity of our database server. This is costing us a lot of money. So if you notice an improvement in our service (particularly up time) resulting from the better database then it would be really great if you would let us know about that too.