the Adagio ingenuiTEA is great for work-place brewing. If you are looking to really invest time in drinking tea, an electric kettle might be worth purchasing. You can go fancy with temperature controlled kettles, which has specific temps for green/white/light oolongs and black/herbal/dark oolongs such as the Adagio utiliTEA, or if you find yourself drinking mostly black/herbal teas, they sell hot pots that simply boil water for under $10.00 at most retailers.
One thing you might want to look into getting , if the microwave is your option, is an instant-read thermometer. You can also use this in other situations, like in cooking, and I just picked up yet another one for 7.00 at bb&b. This can come in handy when heating up water in the microwave.
It's also good to have a reliable timer or time piece nearby when making teas- keep an eye out on your steep time!