I recently installed my discs to laptop and ran the initial 100 hour patch because I am taking a week-long business trip and I want to play at night while I am away. (/em lights candle /g Hello, My name is Dedaien, and I am an EQ-aholic). All survey-taking, rat-prodding, psych-101-****-talkin', head-shrinker wannabees please take note.
It was somewhat laggy, but doable. Turn everything down (gamma, clip, etc.) as suggested, and use an external mouse if you are geared toward using the mouse for targeting, spells, etc. It is not the way I would go unless you have a kickin lap-top, but mine is 2 years old and it actually worked. I will get my fix, dammit...oh yes...I will get...my...FIX!
If you need the DX-9 driver for the laptop, check out
this link which was provided by SOE tech support.
If you're buying now and EQ is a big issue, I would suggest desk top.