Pros: Works in picky mobos, get 2x1GB if you want to OC. Never heated up. Reliable as expected. Would get 5 eggs if it had tighter timings when voltage and timing is manually set.

Cons: Hard to OC when 4 slots filled, regardless of memory vendor. This is as expensive as 2x1GB, so no reason not to get 2G. You can get 1Gig sticks with Micron D9 chips for this price now, so why not?

Overall Review: Q6600 with M0 stepping rocks! 680i boards are SOOO easy to play with! P35 comes in close 2nd Line conditioners and GOOD power supplies help system stability and improve OC.

Pros: holds paper down on my desk

Cons: Dead on arrival

Overall Review: Newegg always has the best service. I should have looked at the dive in ratings lately to avoid this one

Pros: Newegg ROCKS! Nobody beats their service IMHO. Decent prices, and you won't fight about RMA's Best Intel CPU (ONLY)if you can't run the Core 2 Duo's For most simple tasks, it' as fast as a C2D, but NOT when you load up the video, Divx, or other CPU intensive programs.

Cons: Runs hot UNLESS you either get the heatsink JUST RIGHT, or you have water cooling. Mine runs at 3.6(air cooled) on a Gigabyte 965 mobo, and it ran 50's IDLE until I used Arctic Ceramique. Temps now 38C idle, 52C @ 100% CPU use on both cores.

Overall Review: Get a Core 2 CPU if you can. I cannot recommend this CPU unless you need some speed and CAN'T upgrade. It really liked a better power supply and line conditioner / UPS. That made it more overclockable. Definitely get a big heatsink/fan unless you like listening to fans whine. Reapply the thermal paste VERY carefully (up to ten times if needs be!) to get it just right. I have several Pentium D systems, from stock D840 to overclocked D920 @3.7GHz on air. They are all slower than my AMD 4800 X2 (@2.6GHz). I have Allendale E4500's running at 3GHz that make the latter systems look stupid slow, and I tinkered with a Q6600 at 3.2GHZ on air (just makes you laugh how fast it is). I would recommend the Q6600 on a P35 or 680 mobo for future proofing. For MUCH cheaper, you can build AMD and get a snappier everyday performance, but 80% (by seat of the pants experience) of raw computing speed for Spybot/ Defrag/ Video encoding,etc.

Pros: Overclocks well, adequate stock performance.

Cons: The new dual core Pentiums are better if your mobo can handle it

Overall Review: This runs hot at stock voltage - high 50's - low 60's (load). Reduce Vcore; 3.4 GHz (906FSB)on 1.30Vcore 46C (both cores full load)

Pros: Easy to build, spiffy looks, nice size

Cons: lousy motherboard, refused to run cheap or OCZ or Corsair memory at 667, let alone 800. Finally ran with Apida memory. SINGLE CHANNEL memory, no dual channel C2D chips run at 800FSB with latest BIOS, fine for E4500. Only TWO (2) regular USB headers on the board. There are two more 5-pin USB headers, but who has 5-pin adapting cables????? No card reader behind the stealth panel (below the CD doors) - EMPTY SLOT. Card readers come with 9-pin rectangular plug, not 5-pin linear plug, thus you must disable the 2 front panel USB's to use the header on the board. Overclocking? Don't even think about it. Onboard Graphics get a whopping (1.0) per Vista on highest settings. Even with X1950 pro in the PCI-E slot, doesn't seem to have anywhere near the spunk of the same bits on a Gigabyte G965-s2. Odd back panel size prevents using a different mobo.

Overall Review: Not for hardcore or even lumpy core enthusiasts. Great for a dorm. Vista installed quickly, but I like the A*us barebones setup better.

Pros: Lets you practice your system install, several times over for the same PC! Great for PC parts vendors. Prevents arrogance of E6600 owners by running at Celeron speeds

Cons: Slow, Annoying, Slow, Frequent BSOD, Slow, spotty driver support, Slow, long boot times, Slow

Overall Review: Peel back the label and you'll find Windows ME on the package. Looks suspiciously like Mac OS x ...