Listened to some Grado RS-2's today using a Pro-Ject HB II SE (Arcam Solo for source)

WOW!
I've been into AV kit so long that I had forgotten how good music can sound
Problem is I'm now itching to go back and buy them so I can come home and re-listen to my CD's

Unfortunately, common sense has reared its head and told me listen to some other kit, but that's where I'm stumped

(to be honest I didn't set out to listen to headphones so was caught un-awares!) The Senn HD 650's seem well regarded along with the Graham Slee ...but what else should I have a listen too?
Source will be my trusty Laserdisc player (Pio CLD-925) until I pluck up the courage to buy a Logitech Transporter!
Thanks in advance for any pointers