I don't have a lot of money to spend. My $20 Cell knicks have lasted well and seen me through rides as long as 240 kays but it's time to upgrade, especially since I'm starting to ride reasonable distances every day.
Second that, Bellweather is a good value brand. And if you get on the Jaggad mailing list they're forever sending out "$60 off" or "two for one" offers to keep you coming back. Check the SALE page on their website where last season's designs, or stock branded for some event is usually half price. Jaggad bibs are closer to $200 at full price, but they're good if you find em on special.
If money is the deciding factor then probably your best bet is to find a pair you like at a local bike shop and then go online to buy them much cheaper (sorry LBS!) esp. with the favourable exchange rates between Aus and the US and UK at the moment.
I picked up some Santini Twist Gel Bib-knicks from Prendas.co.uk recently (90 bucks incl delivery) and have been v. happy with them.
I'm not aware of the Wiggle dhb sizing being much different to anyone else's. I am just over 6' (183cm) and I ordered a size L - which was the right size for me - wouldn't have wanted it any bigger or smaller.