Just take the Highway to Grenoble. It's about 2 hours drive from Grenoble. It might make some sense if you intend to rent a car. 270F with breakfast. All those hotels are less than 5 min walk from the train station.
Airport shuttle arrives at the bus station wich is located next to the train station.
Downtown Grenoble, just walk. To go to the university Campus, take the Tramway B direction University. Tram fare is 7F50 per ticket. It's 1 min walk from the tram terminus. We will install some PCs and ether links for laptops.