Don't know why I PMd this, I'll put it in here as well:
"I haven't caught one myself, but I've done plenty of research and fished with people who consistently get 10kg + fish on plastics.
People use a pretty broad tackle range to target these fish on plastics; I reckon the ideal is a 2-5 or 3-6kg 6'6"-7'6" graphite rod matched to a 2500-3000 sized spin reel spooled with 10lb braid, and 12-20lb leader. This is best for plastics under 5 inch with ~1/4 ounce and under jigheads, although some people prefer to use 1/2 ounce and heavier jigheads with larger 7 inch plastics, with heavier outfits like 6-10kg rods, 4000 size reels with 20lb braid.
I think basically the lighter outfit for most stuff, but if you're often fishing deeper holes with decent current it may be better to upsize the gear.
Plastics that I've heard and seen good things about-
5inch + 7inch Gulp Jerkshads
100mm Squidgy fish silver fox and gary glitter colours
3 and 4 inch gulp pogys
100mm Squidgy shad white lightning
100mm and 120mm Squidgy wrigglers, bloodworm and silver fox
Jigheads:
9 gram squidgy fish shaped heads (my usual with shads and fish)
1/4oz Nitros with a 2/0 hook for the 5inch jerkshads
3/8th TT heads for the Pogys
1/2oz-1oz with 4/0-5/0 hook for the 7inch jerkshads
Recommended outfits- light- Shimano Stradic FJ 2500, Daiwa Freams 2500, 10lb Power Pro, 10lb Daiwa Shinobi, 12lb Nanofil, Pflueger Trion 3-6, Shimano Raider Soft Plastics 3-6.
Heavier Outfits- 10-20lb Shimano Terez, Basically any lightish snapper rod, with 4000 Stradic FJ, Freams, Stradic Ci4, whatever, 20lb Power Pro etc.
If I was going jewie fishing on the Hawkesbury right now I would take- Trion 3-6. Stradic 2500. 10lb braid. 9Gram fish shaped jigheads. 100mm silver fox fish. 12lb fluro leader. I would fish them with a pretty solid rip rip then sink to the bottom.
Hope some of that made sense.
Good luck!"
The reel/rod recommendations were really just to provide an idea of the sort of thing, there's obviously plenty of cheaper/more expensive equivalents.