Indeed, it is new eMacs -
Good
800MHz PowerPC G4
128MB SDRAM
40GB Ultra ATA drive
CD-ROM drive
ATI Radeon 7500
32MB DDR video memory
56K internal modem
Better
1GHz PowerPC G4
128MB SDRAM
60GB Ultra ATA drive
DVD/CD-RW drive
ATI Radeon 7500
32MB DDR video memory
56K internal modem
Best
1GHz PowerPC G4
256MB SDRAM
80GB Ultra ATA drive
DVD-R/CD-RW drive
ATI Radeon 7500
32MB DDR video memory
56K internal modem
A nice solid update, IMHO.
[Edit - oops, forgot the prices. $799, $999, and $1299 respectively; or, in UK terms, £649, £799, and £999...]