Well my main scanner is still an old Epson GT6500, never had a single problem with this baby... stupidly slow for high res scans mind. :-) (But hey, your probably not thinking about buying a 12 year old scanner so hey)
I would recommend the Epson GT range totally.
That said they are slow at launching new drivers for old scanners...
I think they are up to the GT10000 (A3?) scanner now.