Love your Eee/Air (delete as appropriate) but inconvenienced by lack of optical drive?
Brando has the $78 answer for you - a USB Portable DVD Multi Drive that will hook your lacking laptop up with CD/DVD capabilities.
Specs below - slightly confusingly it only claims to work with a Windows-based operating system - which neither the Eee nor the Air offer, so buyer beware and all that...
* Features: Drive: Matshita DVD-RAM UJ-841S
* CD Read/Write speed: 24x, 10x
* DVD Read/Write speed: 8x, 4x, 2.4x, 5x
* Support Media(Read): DVD+R, DVD+RW, DVD-R, DVD-RW, DVD-RAM, DVD-ROM, DVD-R DL, DVD+R DL, CD-R, CD-RW, CD-ROM, DVD-R DL, DVD+R DL
* Support Media(Write): DVD+R, DVD+RW, DVD-R, DVD-RW, DVD-RAM DVD-R DL, DVD+R DL, CD-R, CD-RW, DVD-R DL, DVD+R DL
* Modes: Packet, TAO, DAO, SAO, RAW SAO
* Buffer Memory: 2MB
* Weight: 314g
* Size: 13.7 x 13.3 x 1.8cm
* Operating System: Windows Vista, Windows XP Home or Professional (SP2), Windows 2000 (SP4)