Im creating a weather lamp, where the arduino takes data from the RSS feed, which would then change the light to represent the weather. After this I look to use a touch sensor to activate sound, where it would tell the user what the weather is going to be like, sunny rainy etc.
So what I want to know is;
Do I need an ethernet cable to be able to get the RSS data?
and will I be able to trigger sound with a touch sensor?
Many thanks
Do I need an ethernet cable to be able to get the RSS data?
You need Ethernet, WiFi, or a program running on a PC with Internet access to pass the data through the USB cable to the Arduino.
and will I be able to trigger sound with a touch sensor?
Yes. You can use a touch sensor to do anything you like.
You can implement a touch sensor with two data pins and a resistor. See: Arduino Playground - HomePage
For sound output you would probably want some specialized hardware such as the Wave Shield (Adafruit Wave Shield for Arduino Kit [v1.1] : ID 94 : $22.00 : Adafruit Industries, Unique & fun DIY electronics and kits) or MP3 Trigger (http://www.sparkfun.com/products/11029).