What HW/SW to use for measurements?

[SashaV]

I am about to finish Wilmslow Audio Prestige DIY speaker kit.
I did quite a few modifications to the cabinets, it is now a multi-layer MDF-fiberglass-lead-silicate-epoxy enclosure.
I would like to do some measurements but I have never done anything like it and have no clue what tools I should get.

What do you guys use to simulate anechoic response and get frequency response of your speakers, so that you can make appropriate modifications to cross-over?
And how reliable are those measurements anyway, are there measuring tools that are capable of sufficient precision? For example, what is the point of trying to achieve +/- 2dB within a specific range if the tools themselves have a resolution of let’s say 0.5dB and are thrown off a few more dBs due to inability to precisely simulate anechoic room?

In other words, is there a decent HW/SW solution that would allow you to get precise measurements in DIY environment?

[SY]

There have been about a million threads on this very subject. Do a bit of searching and you'll find an amazing amount of information.

[SashaV]

I did search but I did not see information on some specific HW and SW.
There is a thread on HOLMImpulse, but I do not see answers to my questions?
Keep in mind I am new at this, if HOLMImpulse is good solution, what HW would I use with it?
For example, what is the point of using mic with mobo embedded sound card and end up with deviations of 10dB between 8K and 16K?
I was hoping to hear about proven and reliable all inclusive solution.

[planet10]

Currently i use Fuzzmeasure, an old G3 (Pismo) laptop, a Gregg the Geek mic pre and a panasonic capsule mounted in a rod. I have an Edirol 24/192 Firewire audio interface & Behringer mic coming (which will let me use my much newer G4 powerBook)

dave