that would be a good setup. i have done a couple vho kits myself in the last month, not sure if those you mentioned above included the bulbs but here is what i paid for a dual 110 vho setup.
3 piece endcaps, 2 pair, 27.00
1 fulham workhorse 7 ballast 35.00
2 4' uri superactinic vho bulbs 44.00
wiring/connectors came in at about 5.00, including a wall plug
1 timer from walmart, 4.00
wiring is about as easy as tying your shoes once you figure out the wiring diagram (or have someone explain it to you). the only tools you need are a pair of wire cutters, a screwdriver, and some electrical tape.
total cost of 115.00 usd
i have seen better deals on endcaps and bulbs, but these are fairly common prices here at least.
as for the halides, i ran a pfo ballast on my last tank (switched to hamilton for this one) and it ran nice and cool, and i experienced no problems. the 10k ushio really didnt have any blue on my tank, all the blue came from the actinic. it depends on what type of bulb and what type of ballast, but for reference i was running ushios on a standard pfo.
hth