Hi,
Well Ive got the same 150x1000mm Skywatcher newt as you. I'm pretty sure you don't have a 2 inch focuser unless they have been updated as of late, so a 40 mm eyepiece is practical or even useful. A 32 mm plossl, or 24 mm 72 degree(See Televue Panoptic) or I think 18mm 82 degree (see Televue nagler and friends(clones/copies)).
Yes quality costs money, and to be honest the Skywatcher 150x1000 is a modest scope, but decent eyepieces really bring it too life. If your willing to look overseas you can find decent eyepieces for much cheaper when what you can find in Australia. Check out Astronomics or Optcorp for eyepieces from other brands that arn't sold in Australia.
I'll tout the horn for ES eyepieces. The 6.7mm and 14mm both 82 degrees and 1.25 inch barrel sizes really brought my 150mm newt to life. They only costed $99 at the time too. Bloody good value for the money spent.
