PMIK: If you don't mind playing the older games then playing them as they were released is not a bad idea: Mean streets, Martian Memorandum, Under a killing moon, The Pandora Detective (um. Directive) then Overseer.
The first two games don't have the greatest writing and puzzles but its just the whole atmosphere. You really feel like a futuristic Private eye. Especially with mean streets, where you need to take down your own notes on real paper and chase down leads. I played that game without referring to a walkthrough once and it was very rewarding.
Writing down your own notes sounds great :) I'll definitely start with those games. Thanks for advice.
SirPrimalform: Even if there was a prequel, I'd say play in order of release as a general rule. Like how I would tell someone to start Star Wars with the Phantom Menace.
Hmm that's true, If I would saw Phantom Menace first, I would be so pissed by Jar Jar Binks that I'll maybe miss the other movies, lol :)
I also can't decide which STALKER should I play first, Clear Sky (prequel) or Shadow of Chernobyl (first from series). Following the rule to play games chronologically by they release date would made my decision making much easier. I'll probably stick to that rule.
But sometimes, it's also interesting to play / watch in story chronological order. I mean, it's interesting experience to watch Star Wars like this I-II-III-IV-V-VI-VII (after you saw it before).
P.S.: Sorry for my english, if it's anybody on this forum who is trying to get more experience by reading or trying learn english grammar from here, better don't learn from my posts :) My english is still very unpolished.