As online Apple Stores around the world begin displaying the familiar “We’ll be back soon” message, it looks increasingly likely that Apple will introduce minor updates to the iMac, Mac mini, Mac Pro as well as updating the Time Capsule and AirPort Extreme.

As detailed by Mac Rumors part numbers and specs were posted to their forum which correspond with last minute rumours that began circulating yesterday.

The iMac will now be available in one 20-inch model and three 24-inch models, processor speeds are on par with the current line-up but memory and hard drive has been doubled in most cases.

MB417LL/A – IMAC 20″ 2.66/2GB/320GB/SD/MSE/KB-USA
MB418LL/A – IMAC 24″ 2.66/4GB/640/SD/MSE/KB-USA
MB419LL/A – IMAC 24″ 2.93/4GB/640/256/SD/MSE/KB-USA
MB420LL/A – IMAC 24″ 3.06/4GB/1TB/512/SD/MSE/KB-USA

Two Mac mini models will now be available with Mac Rumors speculating that the low-end model will be at a new price point of $499 down from $599.

MB463LL/A – MAC MINI 2.0/1X1G/120/SD/AP/BT-USA
MB464LL/A – MAC MINI 2.0/2X1G/320/SD/AP/BT-USA

Although not originally thought to be updated today the Mac Pro appears to also be receiving a minor update. Of particular note is the adoption of the new ATI Radeon HD 4870 graphics card. The specs for the two Mac Pro models are as follows:

MAC PRO 2.26_8CX/6X1G/640/GT120/SD-USA
MAC PRO 2.66QCX/3X1GB/640/GT120/SD-USA

As detailed yesterday, the release of the FCC filings suggest an imminent update to the AirPort Extreme base station and Time Capsule.