The Dell Latitude D630 exceeded all my expectations -- and I am an extremely demanding computer user

it came with a 1.8 duo-core processer and only 1gig memory and 60 or a 80 gig harddrive with win vista busness,, 
ok for entry level but, 
i turned up the onboard video memory to max and jacked up the memory to max level of 4 gig pc2-6400 and added a faster processer T-7500 duo-core 2.2 and bought extra hardrive caddys for a switchout of the harddrives,1 came with it has vista on it ,1 has a 250 gig drive with xp on it and the other has a 620 gig drive with windows 7 on it and bought an extra drivebay caddy (put a 1 terbyte harddrive in it) that goes into the slot where the dvd burner goes and can swap out the dvd burner for the 1 terabyte harddrive when i need to save large files. 
also have a floppy drive that can be switched out for the dvd burner if needed. 
and can swap out the windows system harddrives by taking out 2 screws ,takes about 2 minutes/less from shutdown to boot back up.. 
i saw on ebay where they was some T-7700 2.4 duo-core processers for it also,,might upgrade it some more later on..

almost forgot ,changed out the onboard wi-fi card from 802:11b/g (54mbps) to faster 802:11n(300mbps) wireless . 

not much else you could want in a laptop if you take the time to do the upgrades to it..good luck with yours, i love mine after i did the upgrades..

I have found that laptop PCs & Macbooks

The size of the Mac mini makes it useful for traveling and camping in an RV or camper. It fits easily on the smaller depth shelves that are necessary in the confined quarters of a camper.

I have found that laptop PCs & Macbooks, because of their integrated screens, are not as easy, as the mini, to use as a media center/workstation in an RV.

The mini plugs into a 21" wall mounted LCD, therefore, a smaller attached LCD, on a laptop is less than useful.

Also, the Mac mini remote makes it nice to control the OSX "Front Row" application. I use Front Row with the free media center plugin, "Sapphire".

The 1.83GHz Intel Core 2 Duo Processor works well for the small footprint that the desktop takes up.

I have found that the integrated Airport wireless is great for getting connected when we are in campgrounds with available WiFi.

Next, the bluetooth keyboard & mouse work well, for most of the same reasons that the mini works.

Finally, when we are not traveling we can simply unplug the little desktop and take it into the house and have a nice desktop for the kids.

So, the Mac mini has been a great solution to a "not so typical" need.