Hi,
Some links and information that can be useful.
The hotel in Bromma is called Accome Bromma, the homepage is
www.accome.com, down to the left on the homepage there is an english
flag to get the English version. The closest subway station is Alvik,
but we will of course assist you from the Central Station to the
hotel, however here is the information of the hotel so you have it in
advance:
Accome Alvik
Vidängsvägen 9
167 14 BROMMA
Tel: 08 - 471 10 00

1 Euro is 9,16 SEK or the other way around 100 SEK is 10,65 EUR. All
according to www.forex.se.

Going from Arlanda to the Central station with the train Arlanda
express costs 200 SEK for two persons. Train leaves at least three
times an hour and takes approx. 25 minutes see more on
http://www.arlandaexpress.com/

As I said before if you would like to come earlier or later, please
let us know and pay 25 Euro extra per person and night to the account.

I will leave for two weeks summer holiday tomorrow afternoon (22:nd)
so please mail to rey@..., since I will not be able to read mail
during these weeks.
Happy midsummer!
/Caisa