You can use the advanced search feature in laptops direct , select the options that you want and it will give you a list of the available laptops that match your criteria.
Even if you don't buy from this particular website. It will give you a good idea of what features and models you can expect to get for your money and be can be used as a guideline when looking on other sites.
Using the search and the criteria you are looking for, one laptop that i see that might fit the bill is the following:
Basic Details - Make Acer
Screen Size 17" - Since its only for around the house (fine) if you will be doing any sort of regular travel would recommend a 15.4" screen. Bigger screen better for games and watching movies etc...
2 GHz Intel Dual Core Processor - Fast processor
2 GB Ram - expandable to 4 GB in future when it starts to get slow when there are a lot of programs loaded onto it. Min 2 GB for Vista anyways.
250 GB Hard Drive - Loads of storage. Can always get external/portable hard drive if you run out of space.
Bluetooth, 5-1 cardreader, Inbuilt webcam (not great quality but will do the job its required for), all of the required networking interfaces are on it.
Not too well up on graphics cards but it looks ok to me from the basics i know about them. If you are big into computer games, might be worth asking someone else with more experience about this.
For €830 and prob circa €30 delivery, thats a really good deal IMO and it ticks all of the boxes you mentioned.
Take a look around and have a look at some other laptops, there might be other features you like and may want. This is a good starting point for you i think.