Gateway DX4831-01e

Pros: Solid build on this unit. have run three 24/7 with no hiccups at all. I3 is a wilnner, unit runs super silent. Very cool running at 85 deg F at idle(75 deg ambient). Very EZ to put in a moderate Graphics card if you need it.
Plenty of ports for all

Cons: Weak 300 watt power supply. If you upgarde the graphics card(like some of us feel we just have to do) its a must to put in a higher watt power supply. It runs great mut mods will need more power

Summary: As above I have experienced no problems with these units at all. I do a internal connection check before I virgin start any new computer with SATA connections- the will come loose durng shipping from time to time.
First- remove all unneeded bloatware and free trial offers- don't try to "upgrade in situ" your just asking for compatibility problems. Second- use bona fide retail programs. I make a nice pile of cash fixing hacked up computers with FAU torrent product or generated keys. Third- MAKE THE DANG RESTORE DISCS. again if you don't I bill for the repair. Fourth- run all windows updated immediately and before installing your own software.
Fifth- remember that Windows 7 64 bit will not be compatible with many of the older programs and you may need to upgrade those items also.
A little mention that this is a real nice mid cost range unit for most folks. It is not a hard core gamer and cannot be expected to be. Its a current tech machine that blows P-4's away and remains a great choice for the above average user with minimum geek factor. Since it runs nearly dead silent its not going to bug you while using it either.