So far...

Love:
My Belly Belts (another vote for the belt!). It pays to shop around though - I got some good, reasonably cheap ones from eBay. The best ones are thick fabric that don't fall down.
iPhone Pregnancy Application. It's American but still useful and good fun.
Heat Pack for back pain.
Long t-shirts from Target. They're not maternity shirts, but Target makes some regular size clothes that are long enough to cover the belly. I've lived in them since 12 weeks, and they were all about $15 each.
Poise Liners for the extra moisture
Belly Belly, of course.
Slippery Elm tablets for reflux/heartburn.
Positive Birth Stories on Belly Belly.

I'd put my Body Pillow in the "sometimes great" pile - sometimes it really helps me sleep, other times I find it too crowded and suffocating.

Do NOT Love:
Baby Name book. Total waste of money and paper. I've resourced all our baby names from newspapers, google and Bellybelly (stealing names from other Mums).
Up the Duff (pregnancy book) Not my cup of tea, but I know other preggy ladies like it.
Unsolicited advice.
Negative birth stories from people who feel they need to tell me.