Last time I was down at Welshpool, I wasn't very inpressed with the place, and there has been a lot of debate about it's future, (Like loosing it's license a couple of years ago - but i think they've got it back again)
Of course you could come up to Mona or Caernaforn, Mona has training at £80/hour in a 150, £90 in a PA28 (I think)
WelshFlyer