PH1 staff wizard seemed pretty awesome at the time.
Well, sure, but then you start to look at how it works...
There wasn't the defense feat for using a staff back then, nor the feat for boosting your AC in cloth, etc. Staff is a two-handed weapon, so you couldn't play with the two-weapon feats either. That seriously limited your AC options. You could start with an OK AC, but it was hard to really keep up.
Raging Storm requires CON and DEX, while T-Wave requires WIS. There's simply no really good secondary for staff wizards. You could go with CON, maybe squeeze in a 13 DEX, and 12 WIS, but that wouldn't make your T-Wave super potent.
Overall you'd be reasonably tough (modest AC, modest HP, Staff of Defense + Shield) in melee, with a couple reasonable powers, but you're not getting great control, or else you're falling back on powers more ideally suited to other builds. AP helps a bunch, offering up Summons as an option for CON based characters, but then focuses that on using the tome implement (you can of course pick one up and go dual-implement with it even, but you'd really need to have the actual Implement Mastery with it). In effect you're probably best off to play a Swordmage instead, which is available before AP comes out.
You can make a usable staff wizard, but it never really gelled into a compelling build option. It was always sort of "I took it for the thematics and made do".