I had MX5 Mania replace the front bushes today, and I'm glad I did! The knowledge of what to do, and the tools to do it were outside my range!
Car feels more solid and controlled now, the steering wheel is at a 20 degree angle when driving straight ahead, but that was yto be expected and will be corrected at the alignment at heasman's tomorrow.
In all, I spend ~1200 on parts & tools, and $320 on labour, but considering the wheel bearings alone were $700 each from Mazda I saved a hell of a lot of money too!
If anyone is considering the bush replacement, I say go for it!
Now if if those brake pad guide plates would bloody arrive from the US I'll have nearly finished
(now that the suspension isn't rattling anymore, the other rattles, brake pads included, are very noticable!)