I've had a few that come to mind...
* '76 Marshall 2x12 50w combo (like the one Weller uses), £150
* '67 Marshall SLP, £1000
* Orange reverb head unit, £40
* original Dallas Rangemaster, £250
* Nirvana Bleach on red vinyl (Aussie import with red/silver cover), £10 (later sold for £350)
* White/Matamp 100w full stack (2x matching 4x12 cabs), £250
* Fender Dual Showman 2x15 cab, £150 - fantastic but WAY too big
there have also been numerous Selmer T&B heads, Sound City heads and Simms Watts heads that were bought for under £50.00 and an AC30 cab (minus the amp) for £90.00 that had the original '63 alnico blues.