Prepping for 4 Months

Ok, I would be lieing if I said i did not have a little of anxiety about this trip. But I already bought the flight tickets - I am committed now! Part of the anxiety stems from a general lack of planning on my part. Essentially, I have found in the past that planning for these trips is somewhat worthless. While it is helpful to be acquainted with things you might want to see, it is generally impossible to anticipate following a route for these long, budget-minded trips. Moreover, a regemented itinerary takes away from the reward of the unknown and unexpected. In terms of general preparation, that too seems like it is lacking, because there really is not too much to do! However, I ran across a buddy's buddy's website who is doing a similar trip. He listed what he brought. I found it helpful, so I thought I would build off that. Here's my prep:

Visas
China Visa ordered from embassay - $165
All other visas will be purchased at border
Hong Kong and South Africa - No visa requirement

Meds ($265)
Oral Typhoid
Oral Malaria (Lariam, I think)
Heb B #3 followup shot
Yellow Fever shot

Flights (~ $3000)
RDU (02/20) --> Vegas
Vegas (02/25) --> Hong Kong
Beijing (04/07) --> Cape Town
Dar es Salaam (06/11) --> RDU

Insurance
Flight and Health (~$300) thru Flight booking agency

Funding Means
2 Credit Cards
2 Debit Cards (different PINS)
$500 Traveler's Checks
$1000 Cash (hidden in 3 different places)

Stuff (~23 lbs)
1 Convertible pants, 1 khaki pants, 1 khaki shorts, 1 running shorts
1 gortex shell, 1 fleece
2 t-shirts (grey of course!), 1 button down, 1 polo
1 capilene light underpants and shirt
3 "traveling boxers" (don't ask)
2 wool sock pairs and 1 running pair
1 flip flops, 1 light gortex trail shoes
1 pack towel
3 lonely planet travel books, 1 journal, 2 reading books, 1 pocket English-Chinese dictionary
1 mp3 player and 1 digital camera (17 GB memory)
1 pen, 1 mini flashlight
1 pack hammock (doubles as bedbug protector)
1 roll TP, other toiletry stuff
1 small daybag
1 pack of water treatment tablets
1 pair binoculars
1 copy of passport and flight etkt numbers