There's certain things you should bear in mind.
- Screen size - 15"+
- Hard Drive - 60Gb +
- RAM - 512Mb
- Optical Drive - DVD Writer
- Graphics - Needs to be seperate for good game play, but for everyday stuff doesn't really matter
- CPU - They are all very strong, but I choose AMD over Intel
Other than that brand doesn't really matter.
Acer do some very well spec'd, reasonably priced machines.
Now when it comes to a printer do you need it to be colour ?
If so then there are a lot of very cheap colour ones about.
Now why do I say buy a cheap one, well it works out cheaper to buy a new low range printer than to replace the ink!! Really, go check out the prices of ink, it's painful.