I am hunting for a laptop. That will be my first one. The Acer model below is what I am thinking from Newegg:
Acer Ferrari 4005WLMi NoteBook AMD Turion 64 2GHz 15.4" Wide SXGA+ 1GB DDR333 100GB DVD Super Multi ATI Mobility RADEON X700 - Retail
I heard laptop components usually do not perform as good as in a desktop system. My concerns go to
1. AMD Turion 64 2GHz
2. ATI Mobility RADEON X700
How these two compare to AMD XP2500+ and Nvidia 6600GT in the desktop world? Performance-wise, am I downgrading or upgrading going from the desktop to laptop?
I'll let someone more AMD-ish answer the CPU question, but the video is going backwards. The Radeon X700 tends to be a little slower than the 6600GT in the benchmarks I've seen, and the Radeon X700 Mobility is just a lower-speed version of the X700.
The benchmarks here do a direct comparison between a desktop 6600GT and an X700 Mobility.
In general, a laptop will never perform as well as a similarly-specced desktop. Laptop parts are built for (relative) power-economy and low-heat, desktop parts are built for performance grunt. The one you're looking at should be fine for basic gaming though I'd expect.
With stated specifications, sounds overpriced.
Wait around for when Dell has their sales on laptops.
A good sale, pops around every few months.
You do have to be careful with Dell,
They use the term sale quite frequently. Justified or not.
They tend to have a good sale once every three/four months.
Inspect it very carefully when you receive it and run it off the battery as well.
Do NOT discard a single piece of packaging until you're sure that it is fine.
I had a friend receive a dud of an Ispiron 6400 with multiple upgrade options.
Spent an hour on the phone to make arrangements for them to ship a new one.
Bounced around to four? five? different customer service divisions.
Female tech appeared to have an attitude, until I said the magic words,
"What is Dell's phone number for refund process?"
Things moved at a decent pace after that sentence.