Hi Paul,
You can get a good range of "value for money" eyepieces from Bintel and Andrews Communications:
https://www.bintelshop.com.au/welcome.htm
http://www.andrewscom.com.au/site-section-10.htm
In many scopes under common viewing conditions (with atmospheric "seeing" limitations), you will fail to under about 200x magnification. This would equate say to a 5mm eyepiece being used with 1000mm focal length scope.
See the "Eyepieces" introduction from Bintel (on the menu bar across the top of their website screen).
Good starting range for many people would be 3 eyepieces to provide say 50x, 100x, and 200x magnification.
In terms of quality and price/value, you typically get what you pay for as there is a fair bit of competition in the market place. I started with relatively economical Bintel, Guan Sheng (GSO), and Meade eyepieces ... and then eventually converted to more expensive Televue and William Optics eyepieces when my interest & investment in the hobby grew within the following year or two.
Hope this helps.
Jeff