What classes see the biggest improvement with small investment?

[DeathsSilkyMist]

You might want to try out a few classes, since you are fairly new, to see what you like. With 2kpp you can basically buy a twink kit, that can be used across any character, and will get you to 1-15 or so easy.

https://wiki.project1999.com/Silver_Chitin_Hand_Wraps - 800pp
https://wiki.project1999.com/Smoldering_Brand 150pp
https://wiki.project1999.com/Golden_Fire_Wedding_Ring 240pp for 2x
https://wiki.project1999.com/Orc_Fang_Earring 300pp for 2x
https://wiki.project1999.com/Golden_Jaded_Bracelet 90pp for 2x
https://wiki.project1999.com/Cloak_of_the_Ice_Bear 50pp
https://wiki.project1999.com/Azure_Sleeves 40pp
https://wiki.project1999.com/Chipped_Velium_Amulet 100pp
https://wiki.project1999.com/Straw_Spun_Belt 20pp
https://wiki.project1999.com/Feathered_Leggings 30pp
https://wiki.project1999.com/Iksar_Hide_Cap 200pp

This comes out to ~2000-2100pp depending on prices you get.

Here is what you get:

9/22 weapon with a 14 DD proc
22% Haste
+215 HP
+30 MP
+13 STR
+7 STA
+7 INT
+ 7 WIS
72 AC
3 MR
3 FR
23 CR
3 DR
3 PR
20.2 WT

If you fill the rest of your slots with cloth armor, you will get + 8AC, bringing you to a total of 80ac. That is only 11ac short of a full set of banded armor. You're getting a bit more HP than 215 due to the 7 STA, depending on class. Also, with only weighing 20.2, and with +13 STR, any race, even low str races, are not too weighed down, since you are only really carrying 7 from your own STR.