Hello,
This Saturday we are going to an Italian restaurant - Milano's. The average price is about 250~300NTD. Apparently, it doesn't limit the time the customers dine, so it's a good place to go if you love chatting with your friends. It's close to 忠孝新生 station, right beside exit 2.
some references:
http://miniqq.pixnet.net/blog/post/23749359
http://tw.lifestyle.yahoo.com/poi/?bizid=N93JRSS38510
TEL: 02-23219301
ADD: 台北市中正區忠孝東路二段134巷6號
