The Denon PF-800 combo should sound satisfying. The simple suggestion:
- heavy center clamp / weight (300-700g) ($36 up, cost effective)
Others, costly:
- Herbie's Audio Lab's Way Excellent II ($60 up, will increase height)
- upgrade to a Denon DL103R ($300 up...)
- record ring ($350 up... not cost effective, also requires you to remove tonearm post that snaps into stand to hold arm stationary when not in use)
- replace tonearm cable. The PF-1000 has an upgraded cable compared to the PF-800. I would put an 1877 interface box ($150 plus installation) and try cables, but this will add hundreds to total costs.
So, buy a clamp and enjoy. With the hundreds saved, buy LPs.