GW has put six boxed sets up for pre-order, €65 each (check your variant of the GW site for local prices), which may sound like a lot, but the contents of each set are quite.. amazing, because you save a bundle in a lot of cases.
Yeah, I'm surprised as well, GW putting out bundles that save you money?!
The boxed set also comes with rules for all the models plus a special formation that allows you to field all the models included and pit them against other bundles or the like.
http://www.games-workshop.com/en-NL/Start-Collecting-Tyranids

- Hive Tyrant (€43)
- Tyranid Warriors (€40)
- Gargoyles (€23)
Savings: €41
http://www.games-workshop.com/en-NL/Start-Collecting-Space-Marines

- Terminator Captain
- Tactical Squad (€35)
- Venerable Dreadnought (€37)
Savings: €7 (Price of the captain is unknown to me, seeing as it was a release limited to a specific boxed set: Strike Force Ultra)
http://www.games-workshop.com/en-NL/Start-Collecting-Astra-Militarum

- Commissar (€16,50)
- Cadian infantry squad (€23)
- Cadian heavy weapons team (€12,50)
- Leman Russ battle tank (€40)
Savings: €27
http://www.games-workshop.com/en-NL/Start-Collecting-Necrons

- Necron Overlord (€22)
- Necron Warriors (€31)
- Triarch Stalker (€40)
Savings: €28
http://www.games-workshop.com/en-NL/Start-Collecting-Tau-Empire

- Tau Ethereal
- Tau Fire Warriors (€40)
- Tau Crisis Battlesuits (€60)
Savings: €35 (Price of the Ethereal is unknown to me, seeing as it was a release limited to a specific boxed set)
http://www.games-workshop.com/en-NL/Start-Collecting-Skitarii

- Magos Dominus (€29)
- Skitarii Rangers (€31)
- Onager Dunecrawler (€52)
Savings: €47!
Again, am I dreaming eek