No tunes just a very high pitched whistle/whine.

It's a 360W Chieftec unit. It's done it for probably 6 months and I never thought anything of it until I was reading about another guys PSU probs.

Time to replace?

If so any recommendations for a quality basic PSU. No feckin LEDs or 23 fans I'm not into modding just like things to work well.

I'd probably look at an Antec or an Enermax PSU ~400W but they're not cheap.