Check these out:

http://www.verkkokauppa.com/productimages/orig/32233_01.jpg
and
http://www.puolenkuunpelit.com ... es/pc_oheis_pseat_alc.jpg
or WWW.PLAYSEATS.COM

The first one is a bit more expensive (69990,-), but the Playseat isn't actually that expensive (around 300€).

Or Do-it-yourself; get an old car seat and some steel pipe somewhere and weld the crap together

I've got a good office seat so I haven't invested in a racing chair yet. Only occasional "LFS Arse" for me...