I would recommend either an old Startrite Or Multico saw. I would always get a 12" as opposed to the 10" variant as you alway want something larger! For your budget you should get a nice saw that may need a little TLC to bring into an excellent saw. You may need to be a little patient for a good one to turn up. If you can afford about £400 to £500 you can get a Startrite with a sliding table that's ready for work. Be very picky about what you buy. It's very tempting to rush and get something that's needs too much TLC. I was rather sceptical about a sliding table until I got a saw with one. Simply invaluable.
In all cases, when looking at a saw, take the drive belt of the pulleys. Pull and push in the saw to see if the bearings are worn. If you eave the belt on, it's far more difficult to detect bearing wear. If there is any movement, either agree to buy after you have stripped the bearings out, or walk away. If the bearing just needs changing, that's easy and not very expensive. If the bearing has become clogged it can cause either the spindle or housing to become worn. You then need a new spindle or a sleeve for the housing. Both can be expensive if you don't have the kit to make new ones yourself.