I import all of my finished mixes (exported at 32 bit from each project) into my mastering project.
Each song goes onto it's own track and spaced out appropriately along the timeline. Each track gets nudged into place for best flow.
Because I mix to K-14, all of my tracks sit happily at 0dB and are all of a similar comparative volume
I insert markers art the start of each song so it's quick & easy to simply select a different song by selecting the marker in the Control Bar (Markers) Module.
All tracks go to my master bus which has my mastering chain which consists of several T-Racks modules: a bit of light compression, light EQ and a bit of limiting gets the overall levels up to near commercial outputs.
The chain also has Bluecat's metering plugin
I then export the album at 16 bit 44.1KHz for importing into Sony's CD Architect for burning.
CDA can set your track indices exactly where you want them and will also add CD text.
The 16 bit wav is used for MP3 encoding for which I use the Goldwave editor with free Lame encoder