Some Observations:
The info following now is what we noticed when being there (summer 2000). They are meant as additional info to your guide book. But be aware, that things might have changed since then (insert the corresponding statement by Lonely Planet here 8-)

• Getting around: We noticed that a domestic flight from Reykjavik to Isafjördur was cheaper then taking the bus; and faster, of course: 45 minutes compared to some 8 hours. Otherwise communication with the bus operator BSI is fine: all long distance trips start at the BSI Terminal in Reykjavik, and there are shuttle busses and city busses for example from the downtown camping site. When doing the "Laugavegur" from Landmannalaugar to Pörsmörk/Skogar, you may consider to book the huts and the bus together at the BSI office (a quite cheap option).
• Moving/storing superfluous luggage: When doing several trip in a row, there is the possibility to send extra luggage with BSI busses for a small fee. Moreover, the camping site in Reykjavik and the tourist information in Isafjördur will store your stuff (there are most likely more places of this kind, but we tested just them).
• Getting fuel for your camping stove: In contrast to the info in some guide books, it is no problem to get fuel for any kind of stove at gas stations, outdoor shops or camping sites: petrol/gasoline (Coleman-fuel, liquid), methylated spirit for the Trangia or tubes with gas. A nice feature is that people usually leave the rest that they don't need at the camping site (definitely in Reykjavik and Isafjördur), so you can just take it for free!
• Getting Maps: in scale 1:100000 is not that difficult, even in small villages. For popular trails like the Laugavegur, they are ok (in the summer). Be aware, however, that combining such a map with (even pretty accurate) GPS data, will not help that much. For regions without marked tracks you will need more precise maps anyway. Get them already at home, latest watch out for them in Reykjavik. And, watch out for the big compass declination (20 degrees and more)!

• Iceland : Reykjavik, Embassy of Iceland: general info.
• Iceland travel information , Icelandic Tourist Board , Iceland on the Web
• Lonely Planet online info
• A Collection of Icelandic Photographs by Ed Jackson
• "Iceland, the land of fire and ice" by Stefan Fischer , Island Reiseführer , Neues aus Island , Das deutschsprachige Islandportal
• The weather on Iceland: Veðurstofa Íslands ; Wunderground: Iceland
• Hiking maps: Landmælingar Íslands
• Getting around: Icelandair , Flugfélag Íslands and by bus Bsí Service

2000-08-12: flight to Keflavik

2000-08-13: exploring Keflavik (not that much to explore)

2000-08-14: Blue Lagoon (you can't miss it...)

2000-08-15: bus to Reykjavik and flight to Isafjördur

2000-08-16 to 21: trip on Hornstrandir, Westfjords (see photo page)

2000-08-22: flight back to Reykjavik

2000-08-23: bus to Landmannalaugar (8:30-13:00)

2000-08-24 to 29: hiking the Laugavegur and continuing to Skogar (see photo page)

2000-08-30: bus back to Reykjavik, including everything a tourists needs to see: Gullfoss, Geysir,....

2000-08-31 to 09-01: sightseeing Reykjavik

2000-09-02: bus to Keflavik and flight home