The machines are really expensive here, even buying from UK make the price much lower.
But if you do not want to buy from UK, your best bet is go visit a proper sewing machine store and look at their used refursished machines. The advantage of buying in store is that you is protected by the consumer protection law and you get warranty too.
I would strongly advise you against buying *new* machines priced under 1000 SEK, because these are all crap, pretty much. So it is much better to buy an old good machine for same price as a crap new machine.
If you buy locally (both for new and used machines), please give it a test drive with your own materials, sewing as you would do at home. The stitches you are going to use, the seam allowance width you would use. Even on a crap machine you can get a ok stitch if you sew on the center of a cotton fabric.
Try the widest setting of zig zag, it is the most "sensitive" stitch because it is closer to the boundaries in the machinery. (to be precise, a common problem by then the bobbin thread would not be caught sometimes, making skipped stitches)
A testing institute have reviewed and compared a few common machines in Sweden, you can see it here. It is in Swedish, but you could get a gander of the price figures. (you can see that the cheaper machines won't work well on knit fabrics)
http://www.testfakta.se/hem_hushall/article83329.ece