@DomN76:
1. The picture on a modern PAL TV via an RGB SCART connection is pretty good, and IMHO usually better than an old Commodore 1081 monitor.
Composite video is a different thing entirely - it's OK for games but if you're planning to do anything other than that, e.g. spend any amount of time where you need to read small text and icons such as in Workbench, you really won't want to be using it for any length of time. Composite works by combining the red/green/blue, brightness and h-sync/v-sync components down a single lead, resulting in a picture with a "mushy" appearance...
2. Flicker fixers / scan doublers are stupidly priced - take a look on eBay from time to time as that's the only semi-reliable source. Again, due to age, hardware reliability may be an issue.
3. Composite to VGA converters are OK in their own way (and won't require a separate flicker fixer) but as you're using composite as the source, you'll have the same problems with a poor display for anything other than game use.
- Ali