Mike beat me to most of it. The only thing I can add is to carefully consider the paint option. Many people have painted their Amigas. Some have applied new labels to the curved surface of the keys. What I haven't seen lately is how well these labels hold up over time.
If games are your thing, you might consider a rom switcher. You can install both a 1.3 for games and keep the more modern 2.05 (or even 3.1) for the improved OS.
Food for thought.
