robjg63: I am a little surprised about the talk about bottles. But it seems a lot to do with personal preference...
While I am not a heavy homebrew maker, I have used only plastic bottles and not had an issue.
The one time I had a flat brew I used the coopers glucose pellets for the bottle conditioning. I always use ordinary white sugar now (its cheaper anyway) and always works.
You can reuse the plastic tops quite a few times as well. You just have to take the time to use sterilizer on the bottles and caps before you bottle.
If you rinse your plastic bottles with hot water after you have emptied (drank) them they dont seem to retain any residue and you shouldnt need to use a scratchy bottlebrush.
The general comments I have seen is that glass has a rougher surface in the bottle and is actually harder to sterilize. Of course if something goes wrong with your beer and it gets overcarbonated you could get bottles breaking - plastic isnt brittle so is a bit more forgiving.
The beer can go flat in plastic - the gas can escape through the walls apparently - If you take a year to drink your beer then it might be an issue - but thats a long time!
If you have a good source of 750ml glass bottles and a capper then use them - otherwise plastic works well enough.
NEVER reuse those 330ml glass stubbies - as noted above it could be dangerous.
I use 330ml glass bottles and use crown caps and have had no problems.