In reply to MeMeMe:
Just moved from Lofoten (well actually Ofoten!). In the past I have driven from Bergen, in winter this can taken anything from 2 -3 days to .... if the roads get closed much much longer...
You can fly from oslo to Evenes (Hastard / Narvik) takes about 1:45min and if you book with Norwegian air early the flights can be quite cheap. From there you can hire a car or cheaper take the flybussen which will take you to Svolvær. Flying direct to Svolvær is going to be expensive!
You could go Oslo - Bodø, also cheaper flights and then take a ferry, bus etc.
You can also take the Hurtigruter boat. Why they call it the Hurtig (quick) route I don´t know it takes 3 days from Bergen (weather depending) to Svolvær, cost out of season around 5000 nok with a car. If you add 3 meals a day then it will cost you 10,000 nok for two people. The boat stops in ports regularly and you can leg it to the local shop to buy food. Should be called the Sakte-ruter (slow route). You could get a much cheaper ticket without a cabin.
There is another ferry option from the UK. You can get your car on a cargo vessel, but its not as simple as that, and it would probable add an extra long day to drive.
When we go back next time... We will probable send our sea kayaks and climbing gear by cargo to Svolvær and then collect it there. Costs about 1800 nok for one sea kayak, but if you just had climbing gear / tents etc. it would be cheaper. You can ship with Norcargo from the UK.
July will be high season so all cost will go up. We moved there at the start of august last year and it was really lovely. Very few people. By the start of september it was getting quite cold at night / frosty in the morning. By mid october it was winter.