OK, I'm back, hello to ILikeToMoveItMoveIt and alessthandomesticatedgoddess.
Iliketomoveit - I had pretty well the same reasons as you for starting, which was last year, I find it varies, sometimes my legs slow me down, sometimes my fitness. I approached it by keeping the speed down but gradually increasing the time, using the C25K plan, which meant I completed the plan but was still running quite slowly at the end of it. The fact that I was managing to complete all the running intervals kept me motivated, whereas, if I go too fast and can't complete an interval that demotivates me. You can always work on speed once you have got yourself up to being able to run 30 mins comfortably, it will all be doing you good.
Littlepinkpear - I used the NHS Choices couch to 5k podcasts on an ipod shuffle as I didn't have an Iphone then (got one now). I think they probably have an app version, their music is annoying though. I now use an App called Runkeeper, into which I have programmed all the C25K runs, I use them interspersed with longer runs. Advantage of it is that it logs your dates, distances, speeds and you can listen to your own music whilst getting prompted to walk or run at the right times. And yes, nail varnish discussion is always welcome here as a diversion
Goddess
Here's my playlist, cut and pasted from Itunes so some of the artists are listed as compilations. Can you tell I'm a child of the 70s/80s.
Layla Derek And The Dominos
Milk And Alcohol Dr. Feelgood
Funky Town Dynamic Disco Hits
I Will Survive Dynamic Disco Hits
Turn To Stone Electric Light Orchestra
Sweet Talkin Woman Electric Light Orchestra
Don`t Stop Fleetwood Mac
The Chain Fleetwood Mac
David Watts The Jam
Going Underground The Jam
Town Called Malice The Jam
Pity Poor Alfie/Fever The Jam
Soul Limbo Latin Fever
Thriller Michael Jackson
Big Girl (You Are Beautiful) Mika
My Generation Music Of The Millennium
Oliver's Army Music Of The Millennium
Heart Of Glass Music Of The Millennium
Teenage Kicks Music Of The Millennium
Crazy Little Thing Called Love Queen
Don't Stop Me Now Queen
Walk this way Run DMC with Aerosmith
It's Not Unusual Tom Jones
I Hear You Knocking Dave Edmunds
Chiry Chirpy Cheep Cheep Middle Of The Road
Mouldy Old Dough Lieutenant Pigeon
Tiger Feet Mud
Made Me Smile (Come Up And See Me) Steve Harley & Cockney Rebel
Y.M.C.A. The Village People
Together We Are Beautiful Fern Kinney
Give It Up K.C. & The Sunshine Band
Relax Frankie Goes To Hollywood
Dancing In The Street David Bowie & Mick Jagger
Black Betty [Album Version] Ram Jam
The Final Countdown [Single Version] Europe
More Than A Feeling [Album Version] Boston
Up Around The Bend Hanoi Rocks
Bat Out Of Hell [Album Version] Meat Loaf
Can also recommend Running CD