I've had the following:
1200 Baud modem, goes back to my Amiga 500 days on bbs's
2400 Baud modems, from my Amiga up to my AMD 386-40 Still BBS's
16.8 Zyxel modem, had that up until somewhere in my 486's was used for bbs's and the internet.
28.8 Zoom modem, had that till somewhere in my pentiums. Some bbs's, mainly internet
28.8 flashed to 33.6 US Robotics modem, had that till shortly after I got my last Cyrix 6x86. Occasional bbs but mainly internet.
56k US Robotics Modem and other modems. Had and still have this modem and the ones in other computers and notebooks. Internet only.
Cable Modem - Internet only, had one of these for years now, Had it since the beta test had started in the area. Been great.
Wireless
4800 on Cellular One
9600 on Sprint PCS