You've gone over your limit already yesterday, and you're likely to again today.
What you're meant to do when you run a site is always keep ahead of the demand; having more than you would normally use both to ensure you never go over limits and also can withstand any sudden influx of new visitors.
Irockman's Super Smash Bros. Brawl topic got dugg yesterday, and it resulted in 600 odd people being on RMRK all at once, but my server handled it fine, since I've been doing what I described in the above paragraph ~