Garmin edge 800 on my bike & just got a Garmin forerunner 110.
I used mapmyride on the iphone for my first 6 months of training. Does the job if your on a tight budget. I still upload everything to mapmyride site as well. I like the workout calendar. Plan routes on Garmin connect as its not as clunky as mapmyride.
Last big kit purchase is the wetsuit. £100 budget for that. Should be gerting it on Monday, although cant try in open water as apparently the lake is too cold to open for swimmers
41 mile cycle last night, 3.5 mile run tonight, shins are stinging a bit.
Going to go for the competitive training program from the Don Fink book, although i will be perfectly happy just to finish the IM within 17 hours.