En 280Fx
HFT,
Have done a bit in the 280fx and found it to be great fun and a real pilots helicopter, I have also plenty of time on R44's. The 280fx is nice and stable and has excellent autorotational capabilities and are quite reliable if maintained properly. They can't compare to the R44 for cost, value for money, fuel economy etc. but if you fancy something different I would recommend it. The key is to get one in good condition and make sure it is well maintained. Naturally when you ask about Enstroms you will get the usual sarcastic comments from pilots who have never flown them or know very little about them so aren't really qualified to comment. I would like to think I have given you a more balanced viewpoint.
Good Luck,
BC.