british midland is offering silver status for a year and 2000 miles to start your account for new members.
Now, Silver status doesn’t get you much unless you’re actually going to fly bmi, it takes Gold for partner lounge access, but it’s status so a halfway decent offer. Though they do sometimes offer more miles to start than this, so consider waiting if you’d rather have more miles than status.
Update: Good points in the comments, bmi Silver gets you Star Alliance silver, and that means baggage fee waivers with several airlines. Details and links in the comments.