Real Maximum RAM in 17" iMac G4 1.25Ghz

Okay. Just spent over 45 min chatting online with a Crucial Memory "expert" about RAM for my parents 17" 1.25Ghz iMac G4. According to the her, the maximum amount of memory this computer can handle is the Apple specified 1GB (512 Motherboard/512 user installed). I know from reading the posts on this forum from the real experts that this particular machine can actually handle 2GB, 1GB motherboard (if you're brave enough to get to it to upgrade it) and 1GB user installed. Using the Crucial "Memory Advisor" tool on the website would reveal a 256MB and a 512MB stick of PC2700 memory for this machine, but not a 1GB one. Searching manually for PC2700 SODIMMs revealed a 1GB stick with essentially the same specifications (except for capacity) as the recommended 512MB stick, but the Crucial expert would not say whether it would work or not. Thru this manual search I also discovered another 512MB stick with the same specs as the recommended one, but was priced $16 cheaper.
This is what I found:

Crucial Part # CT650014
512 MB DDR PC2700 200pin SODIMM
CL 2.5
Unbuffered
Non-ECC
DDR333
2.5V
Price $47.99
This was the highest capacity stick the Memory Advisor (and the expert) recommended for the iMac

Crucial Part # CT6464X335
512MB DDR PC2700 200pin SODIMM
CL 2.5
Unbuffered
Non-ECC
DDR333
2.5V
64meg x 64
Price $31.99
The only difference I noticed between this one and the Memory Advisor recommended one (besides the price) was the listing of "64meg x 64". One of the first things I asked the expert was what the difference was between this stick and the recommended one. She replied that the recommended one (CT650014) had an "internal" part # of CT6464X335. Interesting.

Crucial Part # CT12864X335
1GB DDR PC2700 200pin SODIMM
CL 2.5
Unbuffered
Non-ECC
DDR333
2.5V
128meg x 64
Price $82.99
When I asked the expert whether this particular stick would work, she stated that my machine was not capable of accepting a 1GB module in the SODIMM slot. When I told her that I had heard from very reputable sources that the slot was capable of a 1GB stick she told me again that it wasn't. I then asked if the stick (@ 31.99) with the same part # as the "internal" part # for the iMac recommended one (@ 47.99) would work. Her response was that Macs require a "special flavor" (her term, not mine) of memory and that the "internal" part # for the iMac recommended stick was really CT6464X335X, not CT6464X335. Kind of makes me wonder if the extra "X" at the end stands for "Xtra cash".

So after all this, here's the question. Does anyone have any idea if these other sticks will work in this iMac? I think they will but I'm not completely sure. I went to the Crucial website initially because I know that they make a very high quality product. I have used their memory in the past (and currently do so in my G5) and have been very happy with its performance. I also was hoping to be able to get a recommendation from them on which particular stick of memory to buy for my application. After thinking about it, I guess I can see their reluctance to suggest something that's beyond the published specifications of the manufacturer even if it is possible. But the cryptic answers surrounding the 512MB sticks makes me wonder. The iMac has 512MB at present (256+256) running Panther, but Leopard is calling and I know 512 isn't going to cut it, even if it does meet the recommended requirement. It's the minimum requirement, after all. 768 would be better, but 1.2GB would be better still. So I put it to the REAL experts. Am I looking at the right stuff or do I really need a "special flavor". I don't mind paying for it if I really have to, but if not, I'd rather save it for my "special flavor": Cold Beer.

Thanx in advance for the help,
Steve