I make my own for next to nothing.
These ones all made out of pipe cleaners and cost almost nothing.
http://www.taccmd.tacticalwargames.net/ ... 28&t=26726 I also make slightly more expensive trees from woodland scenics stuff, about £20/€ 25-€30 investment, but I have enough to last a lifetime, though some are too big for 6mm. They can be seen on page one and page two of my fantasy log.
Out of the two I love the pipe cleaner ones. They look great on the edge of the table, better than the wallpaper background!
I will probably grab some of the china ones off ebay this year, as I've seen them a plenty on these boards and for their price they are numerous and look pretty good. Ready to go, and they normally offer free shipping (at least we get that here in England, I'm not sure what rates will be for Ireland, but I would hope its still free!)
I think its under z scale trees and you get about 100 for not much more than making your own, but you can get all sorts of different types and sizes.
Roads I have started to make my own, if you have the time and effort. Simple using plasti card and some of the texture spray for art deco/furniture. They take seconds to make, but do need a LOOOOOOOOOOOOOOONG drying time, as that stuff will rub off just walking past it if not dried completely! They need to be vanished and I still need to add road markings but for £12 I get 2 meters of road.
Battlescene designs did have some really nice road tiles in the making,
http://www.taccmd.tacticalwargames.net/ ... 28&t=25390 but Im not sure where he got to with them, so they might not be viable till later in the year. But they will be awesome, and really good value for money.
I know you are after ready mades, and most of mine is self made, but I thought I'd share just incase.