half marathon training Week 1

So I started my first week of run-focused training for the LA Half on December 2.
I am doing three runs a week. So far I feel pretty good. Here's what I've done so far.

Last week:
Speed work @ the SMC track
4x400 meter @ 1:50. I pretty much stuck to that. It was tough to keep a consistent pace since I'm not used to running that fast. That pace is equivalent to a 7:20/mile pace. I usually run 8 min/miles when I'm really feeling fast, so this is definitely pushing it. I pushed through it and felt good throughout the runs. I did a lap at that pace then jogged slowly for 2 minutes, then did another lap at the 1:50 pace. I repeated this 4 times, then jogged home.

Tempo Run
3 mile tempo run @ 8:15 pace. Well that's what it was supposed to be. I went out a little faster for 24:40 for the 3 miles. Pretty close.

Long Run
I ran on San Vicente from Ocean to Bundy. I paced it pretty well and started off slow. I'm supposed to run a 9 minute pace. I did it a little faster mainly because I felt really good at the end so I practiced some surges. It felt really good. I did 6.2 miles in 55 minutes that's 8:52/mile pace.

I'm looking into getting a indoor bike trainer. I've been trying to find one on craig's list for cheap, but haven't had much luck yet.
I've also been looking into building up my Cannondale frame. Right now, i'm leaning towards the SRAM Force groupo. It just seems like a good value. My main concern is I have heard the finish on the carbon parts wears down quickly and starts to look crappy. But if the parts work, i won't sweat it.