Cane Creek 40 Series is a good quality unit that's readily available
There's also a decent enough cartridge bearing offering direct from Condor cycles for ~£25 which I've been using (2 of) for the last few years, I recommend them heartily as a budget(ish) alternative to Cane Creek or posh Campag options.
I decided that a 1" aluminium steerer was just not a good idea and replaced the originals. I don't think a 1" (aluminium) steerer is stiff enough to avoid fatigue and is a liability.
I agree with this very much, if you must use 1 inch with an Alu steerer then inspect regularly and be prepared to replace as well at the first sign of issues, and possibly wise to do so on a semi-regular time based interval if it's used on a high mileage/heavy load machine.
Admittedly steerer failures are rare but they are catastrophic when they happen and the relative scarcity of reports is also probably skewed by the (relatively speaking) smaller number of 1 inch Alu steerers in use, most people on 1 inch bikes are either still using steel forks, or have a very posh but older frame and are running appropriately posh full carbon forks, everyone else is on 1 1/8th. To be clear, I'm not saying that 1 inch Alu steerers are unsafe as such, but I'm just highlighting that their strength and fatigue life is less so be aware of that.
Columbus (used to?) make a full carbon fork in 1" that was shaped to match a non-integrated headset - I think they were called "Minimal"
They do, it is and yes they're still available, I bought a new one last week to replace an old Time carbon fork with a bent(!) steel steerer. They're don't cost much more than Alu steerer models (£150 vs £80-100) and are cheaper than a lot of high end 1 1/8th forks too, they ride nicely (I have an older set too), look good enough mated to old 1 inch frames, are a sensible weight and have a good reputation for reliability, they also come with the necessry bung. They will fit a 28mm tyre with clearance too, but no room for guards :-(
